shockleyi Gray

sphaerocephalus (Harvey & Gray ex Gray) Gray

var. hirtellus Blake

var. sphaerocephalus Synonymy: Aplopappus sphaerocephalus Harvey & Gray ex Gray

Acanthospermum Schrank - STARBURR

australe (Loefl.) Kuntze Present in the Texas flora and known locally as: Paraguay green-stripe (Texas Distribution by vegetation zone) Synonymy: Melampodium australe Loefl.

hispidum DC.

humile (Sw.) DC. Synonymy: Melampodium humile Sw.

xanthioides DC.

Achillea L. - YARROW

distans Waldst. & Kit. ex Willd. Synonymy: Achillea dentifera DC.

filipendulina Lam.

ligustica All.

millefolium L. Present in the Texas flora and known locally as: Western yarrow, common yarrow, milfoil (Texas Distribution by vegetation zone)

var. alpicola (Rydb.) Garrett Synonymy: Achillea alpicola (Rydb.) Rydb. , Achillea fusca Rydb. , Achillea lanulosa ssp. alpicola (Rydb.) Keck , Achillea lanulosa var. alpicola Rydb. , Achillea millefolium var. fusca (Rydb.) G.N. Jones , Achillea subalpina Greene

var. arenicola (Heller) Nobs Synonymy: Achillea arenicola Heller , Achillea borealis ssp. arenicola (Heller) Keck , Achillea borealis var. arenicola (Heller) J.T. Howell , Achillea millefolium var. maritima Jepson

var. borealis (Bong.) Farw. Synonymy: Achillea borealis Bong. , Achillea borealis ssp. typica Keck , Achillea millefolium ssp. atrotegula Boivin , Achillea millefolium ssp. borealis (Bong.) Breitung , Achillea millefolium var. fulva Boivin , Achillea millefolium var. parviligula Boivin , Achillea millefolium var. parvula Boivin

var. californica (Pollard) Jepson Synonymy: Achillea borealis ssp. californica (Pollard) Keck , Achillea borealis var. californica (Pollard) J.T. Howell , Achillea californica Pollard

var. gigantea (Pollard) Nobs Synonymy: Achillea gigantea Pollard

var. litoralis Ehrend. ex Nobs

var. megacephala (Raup) Boivin Synonymy: Achillea lanulosa ssp. megacephala (Raup) Argus , Achillea megacephala Raup

var. millefolium

var. nigrescens E. Mey. Synonymy: Achillea nigrescens (E. Mey.) Rydb.

var. occidentalis DC. Synonymy: Achillea angustissima Rydb. , Achillea aspleniifolia auct. non Vent. , Achillea eradiata Piper , Achillea gracilis Raf. , Achillea lanulosa Nutt. , Achillea lanulosa ssp. typica Keck , Achillea lanulosa var. arachnoidea Lunell , Achillea lanulosa var. eradiata (Piper) M.E. Peck , Achillea laxiflora Pollard & Cockerell , Achillea millefolium ssp. lanulosa (Nutt.) Piper , Achillea millefolium ssp. occidentalis (DC.) Hyl. , Achillea millefolium ssp. pallidotegula Boivin , Achillea millefolium var. aspleniifolia (Vent.) Farw. , Achillea millefolium var. gracilis Raf. ex DC. , Achillea millefolium var. lanulosa (Nutt.) Piper , Achillea millefolium var. rosea (Desf.) Torr. & Gray , Achillea millefolium var. russeolata Boivin , Achillea occidentalis (DC.) Raf. ex Rydb. , Achillea rosea Desf. , Achillea tomentosa Pursh, non L.

var. pacifica (Rydb.) G.N. Jones Synonymy: Achillea pacifica Rydb.

var. puberula (Rydb.) Nobs Synonymy: Achillea puberula Rydb.

nobilis L.

ptarmica L.

sibirica Ledeb. Synonymy: Achillea multiflora Hook.

Achyrachaena Schauer - BLOW-WIVES

mollis Schauer

Acmella L.C. Rich. ex Pers. - SPOTFLOWER

decumbens (Sm.) R.K. Jansen Synonymy: Spilanthes americana var. stolonifera (DC.) A.H. Moore , Spilanthes stolonifera DC.

iodiscaea (A.H. Moore) R.K. Jansen Synonymy: Spilanthes iodiscaea A.H. Moore

oppositifolia (Lam.) R.K. Jansen

var. repens (Walt.) R.K. Jansen Present in the Texas flora and known locally as: Creeping spotflower (Texas Distribution by vegetation zone) Synonymy: Acmella repens (Walt.) L.C. Rich. , Spilanthes americana auct. p.p. non Hieron. , Spilanthes americana var. repens (Walt.) A.H. Moore

pusilla (Hook. & Arn.) R.K. Jansen Synonymy: Spilanthes pusilla Hook. & Arn.

Acourtia D. Don - DESERT-PEONY

microcephala DC. Synonymy: Perezia microcephala (DC.) Gray

nana (Gray) Reveal & King Present in the Texas flora and known locally as: Desert holly, perezia (Texas Distribution by vegetation zone) Synonymy: Perezia nana Gray

runcinata (Lag. ex D. Don) B.L. Turner Present in the Texas flora and known locally as: Stemless perezia, peonia (Texas Distribution by vegetation zone) Synonymy: Perezia runcinata (Lag. ex D. Don) Lag. ex Gray

thurberi (Gray) Reveal & King Synonymy: Perezia thurberi Gray

wrightii (Gray) Reveal & King Present in the Texas flora and known locally as: Pink perezia, brownfoot (Texas Distribution by vegetation zone) Synonymy: Perezia wrightii Gray

Acroptilon Cass. - HARDHEADS

repens (L.) DC. Present in the Texas flora and known locally as: Russian centaurea, Russian knapweed (Texas Distribution by vegetation zone) Synonymy: Centaurea picris Pallas ex Willd. , Centaurea repens L.

Adenocaulon Hook. - AMERICAN TRAILPLANT

bicolor Hook.

Adenophyllum Pers. - DOGWEED

cooperi (Gray) Strother Synonymy: Dyssodia cooperi Gray

porophylloides (Gray) Strother Synonymy: Dyssodia porophylloides Gray

porophyllum (Cav.) Hemsl. Synonymy: Dyssodia porophylla (Cav.) Cav. , Pteronia porophylla Cav.

wrightii Gray Synonymy: Dyssodia neomexicana (Gray) B.L. Robins. , Hymenatherum neomexicanum Gray

Adenostemma J.R. & G. Forst. - MEDICINE-PLANT

lavenia (L.) Kuntze Synonymy: Adenostemma viscosum J.R. & G. Forst. , Verbesina lavenia L.

verbesina (L.) Schultz-Bip. Synonymy: Cotula verbesina L.

Ageratina Spach - SNAKEROOT

adenophora (Spreng.) King & H.E. Robins. Synonymy: Eupatorium adenophorum Spreng. , Eupatorium glandulosum Kunth, non Michx.

altissima (L.) King & H.E. Robins.

var. altissima Present in the Texas flora (treated as Eupatorium rugosum Houtt. by Hatch et al, 1990) and known locally as: White snakeroot (Texas Distribution by vegetation zone) Synonymy: Ageratum altissimum L., non Eupatorium altissimum L. , Eupatorium rugosum Houtt. , Eupatorium rugosum var. chlorolepis Fern. , Eupatorium rugosum var. tomentellum (B.L. Robins.) Blake , Eupatorium rugosum var. villicaule (Fern.) Blake , Eupatorium urticifolium var. tomentellum B.L. Robins.

var. angustata (Gray) Clewell & Woot. Synonymy: Eupatorium rugosum var. angustata (Gray) Blake

var. roanensis (Small) Clewell & Woot. Synonymy: Eupatorium roanense Small , Eupatorium rugosum var. roanense (Small) Fern. , Eupatorium urticifolium Reichard

aromatica (L.) Spach

var. aromatica Synonymy: Eupatorium aromaticum L. , Eupatorium latidens Small

var. incisa (Gray) C.F. Reed Synonymy: Eupatorium aromaticum var. incisum Gray

havanensis (Kunth) King & H.E. Robins. Present in the Texas flora (treated as Eupatorium havanense Kunth in H.B.K. by Hatch et al, 1990) and known locally as: Shrubby boneset (Texas Distribution by vegetation zone) Synonymy: Eupatorium havanense Kunth , Eupatorium texense (Torr. & Gray) Rydb.

herbacea (Gray) King & H.E. Robins. Present in the Texas flora (treated as Eupatorium herbaceum (Gray) Greene by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Eupatorium herbaceum (Gray) Greene

jucunda (Greene) Clewell & Woot. Synonymy: Eupatorium juncundum Greene

lemmonii (B.L. Robins.) King & H.E. Robins. Synonymy: Eupatorium lemmonii B.L. Robins.

luciae-brauniae (Fern.) King & H.E. Robins. Synonymy: Eupatorium luciae-brauniae Fern.

occidentalis (Hook.) King & H.E. Robins. Synonymy: Eupatorium occidentale Hook.

paupercula (Gray) King & H.E. Robins. Synonymy: Eupatorium pauperculum Gray

resiniflua (Urban) King & H.E. Robins. Synonymy: Eupatorium resinifluum Urban

riparia (Regel) King & H.E. Robins. Synonymy: Eupatorium riparium Regel

rothrockii (Gray) King & H.E. Robins. Present in the Texas flora (treated as Eupatorium rothrockii Gray by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Eupatorium rothrockii Gray

shastensis (Taylor & Stebbins) King & H.E. Robins. Synonymy: Eupatorium shastense Taylor & Stebbins

wrightii (Gray) King & H.E. Robins. Present in the Texas flora (treated as Eupatorium wrightii Gray by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Eupatorium wrightii Gray

Ageratum L. - WHITEWEED

conyzoides L.

corymbosum Zuccagni Present in the Texas flora and known locally as: Flattop ageratum No Texas distribution data available Synonymy: Ageratum guatemalense M.F. Johnson

houstonianum P. Mill.

littorale Gray

Agoseris Raf. - GOAT-CHICORY

apargioides (Less.) Greene

var. apargioides Synonymy: Agoseris hirsuta (Hook.) Greene , Troximon apargioides Less.

var. eastwoodiae (Fedde) Munz Synonymy: Agoseris eastwoodiae Fedde

var. maritima (Sheldon) Q. Jones ex Cronq. Synonymy: Agoseris apargioides ssp. maritima (Sheldon) Q. Jones , Agoseris maritima Sheldon

aurantiaca (Hook.) Greene

var. aurantiaca Synonymy: Agoseris graminifolia Greene , Agoseris rostrata Rydb. , Troximon aurantiacum Hook.

var. purpurea (Gray) Cronq. Synonymy: Agoseris aurantiaca ssp. purpurea (Gray) G.W. Douglas

elata (Nutt.) Greene Synonymy: Stylopappus elatus Nutt.

gaspensis Fern.

glauca (Pursh) Raf.

var. agrestis (Osterhout) Q. Jones ex Cronq. Synonymy: Agoseris agrestis Osterhout

var. cronquistii Welsh

var. dasycephala (Torr. & Gray) Jepson Synonymy: Agoseris glauca var. asper (Rydb.) Cronq. , Agoseris glauca var. pumila (Nutt.) Garrett , Agoseris scorzonerifolia (Schrad.) Greene , Troximon glaucum var. dasycephalum Torr. & Gray

var. glauca Synonymy: Agoseris turbinata Rydb. , Troximon glaucum Pursh

var. laciniata (D.C. Eat.) Smiley Synonymy: Agoseris arizonica Greene , Agoseris glauca var. parviflora (Nutt.) Rydb. , Agoseris parviflora (Nutt.) Greene , Macrorhynchus glaucus var. laciniatus D.C. Eat. , Troximon parviflorum Nutt.

var. monticola (Greene) Q. Jones ex Cronq. Synonymy: Agoseris monticola Greene

grandiflora (Nutt.) Greene Synonymy: Agoseris laciniata (Nutt.) Greene , Agoseris plebeja (Greene) Greene , Troximon grandiflorum Nutt.

heterophylla (Nutt.) Greene

var. crenulata Jepson

var. heterophylla Synonymy: Agoseris heterophylla ssp. californica (Nutt.) Piper , Agoseris heterophylla ssp. normalis Piper , Agoseris heterophylla var. cryptopleura Jepson , Agoseris heterophylla var. kymapleura Greene , Macrorhynchus heterophyllus Nutt.

var. turgida (Hall) Jepson

lackschewitzii D. Henderson & R. Moseley

retrorsa (Benth.) Greene Synonymy: Macrorhynchus retrorsus Benth.

Almutaster A.& D. Löve

pauciflorus (Nutt.) A.& D. Löve Synonymy: Aster hydrophilus Greene ex Woot. & Standl. , Aster pauciflorus Nutt.

Amberboa (Pers.) Less. - SWEETSULTAN

moschata (L.) DC. Synonymy: Centaurea moschata L.

Amblyolepis DC. - HUISACHE-DAISY

setigera DC. Present in the Texas flora and known locally as: Huisache-Daisy (Texas Distribution by vegetation zone) Synonymy: Helenium setigerum (DC.) Britt. & Rusby

Amblyopappus Hook. & Arn. - COASTWEED

pusillus Hook. & Arn.

Ambrosia L. - BURR-RAGWEED AND RAGWEED

acanthicarpa Hook. Present in the Texas flora and known locally as: Flatspine ragweed, burweed, flatspine bursage (Texas Distribution by vegetation zone) Synonymy: Franseria acanthicarpa (Hook.) Coville , Gaertneria acanthicarpa (Hook.) Britt.

ambrosioides (Cav.) Payne Synonymy: Franseria ambrosioides Cav.

artemisiifolia L. Present in the Texas flora and known locally as: Common ragweed, Roman wormwood, short ragweed, altamisa (Texas Distribution by vegetation zone)

var. artemisiifolia

var. elatior (L.) Descourtils Synonymy: Ambrosia elatior L.

var. paniculata (Michx.) Blank. Synonymy: Ambrosia glandulosa Scheele , Ambrosia monophylla (Walt.) Rydb. , Ambrosia paniculata Michx.

bidentata Michx. Present in the Texas flora and known locally as: Lanceleaf ragweed, southern ragweed (Texas Distribution by vegetation zone)

canescens (Benth.) Gray

chamissonis (Less.) Greene Synonymy: Ambrosia chamissonis var. bipinnatisecta (Less.) J.T. Howell , Franseria chamissonis Less. , Franseria chamissonis ssp. bipinnatisecta (Less.) Wiggins & Stockwell , Franseria chamissonis var. bipinnatisecta Less.

cheiranthifolia Gray Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Listed by the U.S. FWS as endangered, the FWS local name is South Texas ambrosia and the FWS range is: U.S.A. (TX). Listed on August 24, 1994 (Volume 59 Federal Register 43652).

chenopodiifolia (Benth.) Payne Synonymy: Franseria chenopodiifolia Benth.

confertiflora DC. Present in the Texas flora and known locally as: Field ragweed, bursage (Texas Distribution by vegetation zone) Synonymy: Franseria confertiflora (DC.) Rydb. , Franseria strigulosa Rydb. , Gaertneria tenuifolia Harvey & Gray

cordifolia (Gray) Payne Synonymy: Franseria cordifolia Gray

deltoidea (Torr.) Payne Synonymy: Franseria deltoidea Torr.

dumosa (Gray) Payne Synonymy: Franseria dumosa Gray

eriocentra (Gray) Payne Synonymy: Franseria eriocentra Gray

grayi (A. Nels.) Shinners Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Franseria tomentosa Gray , Gaertnera tomentosa (Gray) Kuntze , Gaertneria grayi A. Nels.

X helenae Rouleau [artemisiifolia X trifida]

hispida Pursh

ilicifolia (Gray) Payne Synonymy: Franseria ilicifolia Gray

X intergradiens Wagner [artemisiifolia X psilostachya]

linearis (Rydb.) Payne Synonymy: Franseria linearis Rydb.

peruviana Willd.

psilostachya DC. Present in the Texas flora (treated as Ambrosia cumanensis Kunth in H.B.K. by Hatch et al, 1990) and known locally as: Western ragweed, perennial ragweed (Texas Distribution by vegetation zone) Synonymy: Ambrosia californica Rydb. , Ambrosia coronopifolia Torr. & Gray , Ambrosia cumanensis auct. non Kunth , Ambrosia psilostachya var. californica (Rydb.) Blake , Ambrosia psilostachya var. coronopifolia (Torr. & Gray) Farw. , Ambrosia psilostachya var. lindheimeriana (Scheele) Blank. , Ambrosia rugelii Rydb.

pumila (Nutt.) Gray Synonymy: Franseria pumila Nutt.

tenuifolia Spreng.

tomentosa Nutt. Synonymy: Franseria discolor Nutt. , Franseria tomentosa (Nutt.) A. Nels., non Gray , Gaertneria discolor (Nutt.) Kuntze , Gaertneria tomentosa (Nutt.) Heller

trifida L.

var. texana Scheele Present in the Texas flora and known locally as: Blood ragweed (Texas Distribution by vegetation zone) Synonymy: Ambrosia aptera DC. , Ambrosia trifida var. aptera (DC.) Kuntze

var. trifida Synonymy: Ambrosia trifida var. integrifolia (Muhl. ex Willd.) Torr. & Gray

Ampelaster Nesom

carolinianus (Walt.) Nesom Synonymy: Aster carolinianus Walt. , Lasallea caroliniana (Walt.) Semple & Brouillet , Virgulus carolinianus (Walt.) Reveal & Keener

Amphiachyris (A. DC.) Nutt. - BROOMWEED

amoena (Shinners) Solbrig Present in the Texas flora and known locally as: Annual broomweed, broomweed (Texas Distribution by vegetation zone) Synonymy: Xanthocephalum amoenum Shinners , Xanthocephalum amoenum var. intermedium Shinners

dracunculoides (DC.) Nutt. Present in the Texas flora and known locally as: Annual broomweed, broomweed (Texas Distribution by vegetation zone) Synonymy: Brachyris dracunculoides DC. , Gutierrezia dracunculoides (DC.) Blake , Xanthocephalum dracunculoides (DC.) Shinners

Amphipappus Torr. & Gray - CHAFFBUSH

fremontii Torr. & Gray

ssp. fremontii

ssp. spinosus (A. Nels.) Keck Synonymy: Amphiachyris spinosa A. Nels. , Amphipappus fremontii var. spinosus (A. Nels.) C.L. Porter

Anacylus L. - WHITEBUTTONS

clavatus (Desf.) Pers. Synonymy: Anacylus tomentosus DC.

Anaphalis DC. - PEARLY-EVERLASTING

margaritacea (L.) Benth. & Hook. f. Synonymy: Anaphalis margaritacea var. angustior (Miq.) Nakai , Anaphalis margaritacea var. intercedens Hara , Anaphalis margaritacea var. occidentalis Greene , Anaphalis margaritacea var. revoluta Suksdorf , Anaphalis margaritacea var. subalpina Gray , Anaphalis occidentalis (Greene) Heller , Gnaphalium margaritaceum L.

Ancistrocarphus Gray - FALSE NESTSTRAW

filagineus Gray Synonymy: Stylocline filaginea (Gray) Gray , Stylocline filaginea var. depressa Jepson

Anisocoma Torr. & Gray - SCALEBUD

acaulis Torr. & Gray

Antennaria Gaertn. - PUSSYTOES

alpina (L.) Gaertn. Synonymy: Antennaria alpina var. canescens (Lange) Trautv. , Antennaria alpina var. compacta (Malte) Welsh , Antennaria alpina var. glabrata J. Vahl , Antennaria alpina var. intermedia Rosenv. , Antennaria alpina var. stolonifera (Porsild) Welsh , Antennaria alpina var. ungavensis Fern. , Antennaria arenicola Malte , Antennaria atriceps Fern. , Antennaria bayardii Fern. , Antennaria boecheriana Porsild , Antennaria borealis Greene , Antennaria brunnescens Fern. , Antennaria cana (Fern. & Wieg.) Fern. , Antennaria canescens (Lange) Malte , Antennaria canescens ssp. porsildii (Ekman) A.& D. Löve , Antennaria canescens var. pseudoporsildii Böcher , Antennaria columnaris Fern. , Antennaria compacta Malte , Antennaria confusa Fern. , Antennaria crymophila Porsild , Antennaria foggii Fern. , Antennaria friesiana ssp. compacta (Malte) Hultén , Antennaria glabrata (J. Vahl) Greene , Antennaria groenlandica Porsild , Antennaria hansii Kern. , Antennaria intermedia (Rosenv.) A.E. Pors. , Antennaria labradorica Nutt. , Antennaria longii Fern. , Antennaria pallida E. Nels. , Antennaria pedunculata Porsild , Antennaria porsildii Ekman , Antennaria sornborgeri Fern. , Antennaria stolonifera Porsild , Antennaria subcanescens Ostenf. ex Malte , Antennaria ungavensis (Fern.) Malte , Antennaria vexillifera Fern. , Antennaria wiegandii Fern. , Gnaphalium alpinum L.

anaphaloides Rydb. Synonymy: Antennaria pulcherrima ssp. anaphaloides (Rydb.) W.A. Weber , Antennaria pulcherrima var. anaphaloides (Rydb.) G.W. Douglas

arcuata Cronq.

argentea Benth. Synonymy: Antennaria luzuloides var. argentea (Benth.) Gray

aromatica Evert

corymbosa E. Nels. Synonymy: Antennaria acuta Rydb. , Antennaria dioica var. corymbosa (E. Nels.) Jepson , Antennaria hygrophila Greene , Antennaria nardina Greene

densifolia Porsild Synonymy: Antennaria ellyae Porsild

dimorpha (Nutt.) Torr. & Gray Synonymy: Antennaria dimorpha var. integra Henderson , Antennaria dimorpha var. latisquama (Piper) M.E. Peck , Antennaria dimorpha var. macrocephala D.C. Eat. , Antennaria latisquama Piper , Antennaria macrocephala (D.C. Eat.) Rydb. , Gnaphalium dimorphum Nutt.

dioica (L.) Gaertn. Synonymy: Antennaria dioica var. hyperborea (D. Don) Greene , Antennaria hyperborea D. Don , Antennaria insularis Greene , Gnaphalium dioicum L.

X erigeroides Greene (pro sp.) [corymbosa X racemosa]

eucosma Fern. & Wieg.

flagellaris (Gray) Gray Synonymy: Antennaria dimorpha var. flagellaris Gray

X foliacea Greene (pro sp.) [microphylla X racemosa]

friesiana (Trautv.) Ekman

ssp. alaskana (Malte) Hultén Synonymy: Antennaria alaskana Malte

ssp. friesiana Synonymy: Antennaria alpina var. friesiana Trautv. , Antennaria angustifolia Ekman, non Rydb. , Antennaria ekmaniana Porsild

ssp. neoalaskana (Porsild) Bayer & Stebbins Synonymy: Antennaria neoalaskana Porsild

geyeri Gray Synonymy: Gnaphalium alienum Hook. & Arn.

howellii Greene

ssp. canadensis (Greene) Bayer Synonymy: Antennaria canadensis Greene , Antennaria neglecta var. randii (Fern.) Cronq. , Antennaria neodioica ssp. canadensis (Greene) Bayer & Stebbins , Antennaria neodioica var. randii (Fern.) Boivin , Antennaria randii Fern. , Antennaria spathulata (Fern.) Fern.

ssp. howellii Synonymy: Antennaria callilepis Greene , Antennaria eximia Greene , Antennaria neglecta ssp. howellii (Greene) Hultén , Antennaria neglecta var. howellii (Greene) Cronq. , Antennaria neodioica ssp. howellii (Greene) Bayer

ssp. neodioica (Greene) Bayer Synonymy: Antennaria grandis (Fern.) House , Antennaria neglecta var. attenuata (Fern.) Cronq. , Antennaria neglecta var. neodioica (Greene) Cronq. , Antennaria neodioica Greene , Antennaria neodioica var. attenuata Fern. , Antennaria neodioica var. chlorophylla Fern. , Antennaria neodioica var. grandis Fern. , Antennaria neodioica var. interjecta Fern. , Antennaria neodioica var. rupicola (Fern.) Fern. , Antennaria obovata E. Nels. , Antennaria rhodantha Fern. , Antennaria rupicola Fern. , Antennaria russellii Boivin

ssp. petaloidea (Fern.) Bayer Synonymy: Antennaria appendiculata Fern. , Antennaria concolor Piper , Antennaria neglecta var. petaloidea (Fern.) Cronq. , Antennaria neodioica ssp. petaloidea (Fern.) Bayer & Stebbins , Antennaria neodioica var. petaloidea Fern. , Antennaria pedicellata Greene , Antennaria petaloidea (Fern.) Fern. , Antennaria petaloidea var. scariosa Fern. , Antennaria petaloidea var. subcorymbosa (Fern.) Fern. , Antennaria stenolepis Greene

lanata (Hook.) Greene Synonymy: Antennaria carpathica var. lanata Hook.

luzuloides Torr. & Gray

ssp. aberrans (E. Nels.) Bayer & Stebbins Synonymy: Antennaria argentea ssp. aberrans E. Nels. , Antennaria luzuloides var. microcephala (Gray) Cronq. , Antennaria microcephala Gray , Antennaria pyramidata Greene

ssp. luzuloides Synonymy: Antennaria luzuloides var. oblanceolata (Rydb.) M.E. Peck , Antennaria oblanceolata Rydb.

X macounii Greene (pro sp.) [media X umbrinella]

marginata Greene Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Antennaria dioica var. marginata (Greene) Jepson , Antennaria fendleri Greene , Antennaria peramoena Greene

media Greene Synonymy: Antennaria alpina var. media (Greene) Jepson , Antennaria austromontana E. Nels. , Antennaria candida Greene , Antennaria densa Greene , Antennaria gormanii St. John , Antennaria modesta Greene , Antennaria mucronata E. Nels.

microphylla Rydb. Synonymy: Antennaria bracteosa Rydb. , Antennaria nitida Greene , Antennaria parvifolia sensu Greene, non Nutt. , Antennaria parvifolia var. bracteosa (Rydb.) A. Nels. , Antennaria rosea var. nitida (Greene) Breitung , Antennaria solstitialis Lunell

monocephala DC.

ssp. angustifolia (Greene) Hultén Synonymy: Antennaria alpina var. megacephala (Fern.) Hultén , Antennaria alpina var. megacephala (Fern.) Welsh , Antennaria angustata Greene , Antennaria burwellensis Malte , Antennaria congesta Malte , Antennaria fernaldiana Polunin , Antennaria friesiana var. megacephala (Fern.) Hultén , Antennaria hudsonica Malte , Antennaria megacephala Fern. , Antennaria monocephala ssp. angustata (Greene) Hultén , Antennaria pygmaea Fern. , Antennaria tansleyi Polunin , Antennaria tweedsmurii Polunin

ssp. monocephala Synonymy: Antennaria exilis Greene , Antennaria monocephala ssp. philonipha (Porsild) Hultén , Antennaria monocephala var. exilis (Greene) Hultén , Antennaria nitens Greene , Antennaria philonipha Porsild

neglecta Greene Synonymy: Antennaria angustiarum Lunell , Antennaria athabascensis Greene , Antennaria campestris Rydb. , Antennaria campestris var. athabascensis (Greene) Boivin , Antennaria chelonica Lunell , Antennaria erosa Greene , Antennaria howellii var. athabascensis (Greene) Boivin , Antennaria howellii var. campestris (Rydb.) Boivin , Antennaria longifolia Greene , Antennaria lunellii Greene , Antennaria nebraskensis Greene , Antennaria neglecta var. athabascensis (Greene) Taylor & MacBryde , Antennaria neglecta var. campestris (Rydb.) Steyermark , Antennaria parvula Greene , Antennaria wilsonii Greene

X oblancifolia E. Nels. (pro sp.) [racemosa X umbrinella]

parlinii Fern.

ssp. fallax (Greene) Bayer & Stebbins Present in the Texas flora and known locally as: Laregleaf pussytoes (Texas Distribution by vegetation zone) Synonymy: Antennaria ambigens (Greene) Fern. , Antennaria ampla Bush , Antennaria arkansana Greene , Antennaria arnoglossa var. ambigens Greene , Antennaria bifrons Greene , Antennaria brainerdii Greene , Antennaria calophylla Greene , Antennaria fallax Greene , Antennaria fallax var. calophylla (Greene) Fern. , Antennaria farwellii Greene , Antennaria greenei Bush , Antennaria mesochora Greene , Antennaria munda Fern. , Antennaria occidentalis Greene , Antennaria parlinii var. farwellii (Greene) Boivin , Antennaria plantaginifolia var. ambigens (Greene) Cronq. , Antennaria umbellata Greene

ssp. parlinii Synonymy: Antennaria arnoglossa Greene , Antennaria parlinii var. arnoglossa (Greene) Fern. , Antennaria plantaginifolia var. arnoglossa (Greene) Cronq.

parvifolia Nutt. Synonymy: Antennaria aprica Greene , Antennaria aprica var. minuscula (Boivin) Boivin , Antennaria aureola Lunell , Antennaria holmii Greene , Antennaria latisquamea Greene , Antennaria minuscula Boivin , Antennaria obtusata Greene , Antennaria pumila Greene , Antennaria recurva Greene , Antennaria rhodanthus Suksdorf

plantaginifolia (L.) Richards. Synonymy: Antennaria caroliniana Rydb. , Antennaria decipiens Greene , Antennaria denikeana Boivin , Antennaria nemoralis Greene , Antennaria petiolata Fern. , Antennaria pinetorum Greene , Antennaria plantaginifolia var. petiolata (Fern.) Heller , Gnaphalium plantaginifolium L.

pulchella Greene Synonymy: Antennaria alpina var. scabra (Greene) Jepson , Antennaria media ssp. ciliata E. Nels. , Antennaria scabra Greene

pulcherrima (Hook.) Greene Synonymy: Antennaria carpathica var. pulcherrima Hook. , Antennaria pulcherrima var. angustisquama Porsild , Antennaria pulcherrima var. sordida Boivin

racemosa Hook. Synonymy: Antennaria petasites Greene , Antennaria piperi Rydb.

rosea Greene

ssp. arida (E. Nels.) Bayer Synonymy: Antennaria arida E. Nels. , Antennaria arida ssp. viscidula E. Nels. , Antennaria scariosa E. Nels.

ssp. confinis (Greene) Bayer Synonymy: Antennaria albicans Fern. , Antennaria angustifolia Rydb. , Antennaria arida var. humilis (Rydb.) E. Nels. , Antennaria breitungii Porsild , Antennaria brevistyla Fern. (NOTE: Taxonomic placement not certain) , Antennaria concinna E. Nels. , Antennaria confinis Greene , Antennaria dioica var. kernensis Jepson , Antennaria elegans Porsild , Antennaria foliacea var. humilis Rydb. , Antennaria incarnata Porsild , Antennaria laingii Porsild , Antennaria leontopodioides Cody , Antennaria leuchippii M.P. Porsild , Antennaria rosea var. angustifolia (Rydb.) E. Nels. , Antennaria sedoides Greene , Antennaria sordida Greene , Antennaria straminea Fern. , Antennaria subviscosa Fern. , Antennaria tomentella E. Nels.

ssp. pulvinata (Greene) Bayer Synonymy: Antennaria affinis Fern. , Antennaria albescens (E. Nels.) Rydb. , Antennaria fusca E. Nels. , Antennaria gaspensis (Fern.) Fern. , Antennaria isolepis Greene , Antennaria maculata Greene , Antennaria manicouagana Landry , Antennaria neglecta var. gaspensis (Fern.) Cronq. , Antennaria neodioica var. gaspensis Fern. , Antennaria peasei Fern. , Antennaria pulvinata Greene , Antennaria pulvinata ssp. albescens E. Nels. , Antennaria sansonii Greene

ssp. rosea Synonymy: Antennaria acuminata Greene , Antennaria alborosea Porsild ex M.P. Porsild , Antennaria chlorantha Greene , Antennaria dioica var. rosea (Greene) D.C. Eat. , Antennaria formosa Greene , Antennaria hendersonii Piper , Antennaria imbricata E. Nels. , Antennaria lanulosa Greene , Antennaria neodioica var. chlorantha (Greene) Boivin , Antennaria oxyphylla Greene , Antennaria rosea ssp. divaricata E. Nels. , Antennaria rosea var. imbricata (E. Nels.) E. Nels. , Antennaria speciosa Greene

rosulata Rydb. Synonymy: Antennaria bakeri Greene , Antennaria sierrae-blancae Rydb.

X rousseaui Pors. (pro sp.) [?alpina X rosea]

soliceps Blake

solitaria Rydb. Synonymy: Antennaria monocephala (Torr. & Gray) Greene , Antennaria plantaginifolia var. monocephala Torr. & Gray

stenophylla (Gray) Gray Synonymy: Antennaria alpina var. stenophylla Gray , Antennaria leucophaea Piper

suffrutescens Greene

umbrinella Rydb. Synonymy: Antennaria aizoides Greene , Antennaria flavescens Rydb. , Antennaria reflexa E. Nels.

virginica Stebbins Synonymy: Antennaria neglecta var. argillicola (Stebbins) Cronq. , Antennaria virginica var. argillicola Stebbins

Anthemis L. - CHAMOMILE

altissima L. Synonymy: Cota altissima (L.) J. Gay

arvensis L.

var. agrestis (Wallr.) DC.

var. arvensis

austriaca Jacq.

cotula L. Present in the Texas flora and known locally as: Mayweed camomile, mayweed, dog-fennel, stinking chamomile (Texas Distribution by vegetation zone) Synonymy: Maruta cotula (L.) DC.

secundiramea Biv.

tinctoria L. Synonymy: Cota tinctoria (L.) J. Gay

Antheropeas Rydb. - EASTER-BONNETS

lanosum (Gray) Rydb. Synonymy: Eriophyllum lanosum (Gray) Gray

wallacei (Gray) Rydb. Synonymy: Eriophyllum wallacei (Gray) Gray , Eriophyllum wallacei ssp. australe (Rydb.) Wiggins , Eriophyllum wallacei var. calvescens Blake , Eriophyllum wallacei var. rubellum (Gray) Gray

Aphanostephus DC. - DOZEDAISY

pilosus Buckl. Present in the Texas flora and known locally as: Hairy lazydaisy (Texas Distribution by vegetation zone)

ramosissimus DC.

var. humilis (Benth.) B.L. Turner & Birdsong Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Aphanostephus arizonicus Gray , Aphanostephus humilis (Benth.) Gray , Aphanostephus potosinus Shinners , Leucopsidium humile Benth.

var. ramosissimus Present in the Texas flora and known locally as: Plains lazydaisy, Arizona lazydaisy (Texas Distribution by vegetation zone)

riddellii Torr. & Gray Present in the Texas flora and known locally as: Riddell lazydaisy (Texas Distribution by vegetation zone)

skirrhobasis (DC.) Trel.

var. kidderi (Blake) B.L. Turner Present in the Texas flora and known locally as: Kidder lazydaisy (Texas Distribution by vegetation zone) Synonymy: Aphanostephus kidderi Blake

var. skirrhobasis Present in the Texas flora and known locally as: Arkansas lazydaisy (Texas Distribution by vegetation zone) Synonymy: Keerlia skirrhobasis DC.

var. thalassius Shinners Present in the Texas flora and known locally as: Coast lazydaisy (Texas Distribution by vegetation zone)

Arctium L. - BURRDOCK

lappa L.

minus Bernh. Synonymy: Lappa minor Hill

X mixtum Nyman [minus X tomentosum]

X nothum (Ruhm.) Weiss [lappa X minus]

tomentosum P. Mill.

vulgare (Hill) Evans Synonymy: Arctium minus ssp. nemorosum (Lej. & Court.) Syme , Arctium nemorosum Lej. & Court.

Arctotheca J.C. Wendl.

calendula (L.) Levyns

Arctotis L. - AFRICAN-DAISY

stoechadifolia Berg. Synonymy: Arctotis grandis Thunb. , Arctotis stoechadifolia var. grandis (Thunb.) Less.

Argyranthemum Webb - DILLDAISY

foeniculum (Willd.) Schultz-Bip. Synonymy: Argyranthemum anethifolium (Willd.) Webb , Pyrethrum anethifolium Willd.

X Argyrautia Sherff

X degeneri Sherff [Arygroxiphium grayanum X Dubautia laxa]

Argyroxiphium DC. - SILVERSWORD

caliginis Forbes

grayanum (Hbd.) O. Deg. Synonymy: Wilkesia grayana Hbd.

X kai (Forbes) Keck [caliginis X grayanum] Synonymy: Argyroxiphium caliginis var. kai Forbes

kauense (Rock & Neal) O.& I. Deg. Listed by the U.S. FWS as endangered, the FWS local name is Ka`u silversword and the FWS range is: U.S.A. (HI). Listed on April 7, 1993 (Volume 58 Federal Register 18035). Synonymy: Argyroxiphium sandwicense var. kauense Rock & Neal

sandwicense DC. Listed by the U.S. FWS as endangered, the FWS local name is `Ahinahina (=Mauna Kea silversword) and the FWS range is: U.S.A. (HI). Listed on March 21, 1986 (Volume 51 Federal Register 9820).

ssp. macrocephalum (Gray) Mérat Listed by the U.S. FWS as endangered, the FWS local name is `Ahinahina (=Haleakala silversword) and the FWS range is: U.S.A. (HI). Listed on May 15, 1992 (Volume 57 Federal Register 20787). Synonymy: Argyroxiphium macrocephalum Gray

ssp. sandwicense

virescens Hbd. Synonymy: Argyroxiphium forbesii St. John

Arnica L. - LEOPARDBANE

acaulis (Walt.) B.S.P. Synonymy: Doronicum acaule Walt.

alpina (L.) Olin

amplexicaulis Nutt. Synonymy: Arnica amplexicaulis ssp. genuina Maguire , Arnica amplexicaulis ssp. prima (Maguire) Maguire , Arnica amplexicaulis var. piperi St. John & Warren , Arnica amplexicaulis var. prima (Maguire) Boivin , Arnica amplexifolia Rydb. , Arnica mollis var. aspera (Greene) Boivin

angustifolia Vahl

ssp. angustifolia Synonymy: Arnica alpina ssp. angustifolia (Vahl) Maguire , Arnica alpina ssp. attenuata (Greene) Maguire , Arnica alpina ssp. sornborgeri (Fern.) Maguire , Arnica alpina var. angustifolia (Vahl) Fern. , Arnica alpina var. attenuata (Greene) Ediger & Barkl. , Arnica alpina var. linearis Hultén , Arnica alpina var. plantaginea (Pursh) Ediger & Barkl. , Arnica alpina var. ungavensis Boivin , Arnica alpina var. vestita Hultén , Arnica angustifolia ssp. attenuata (Greene) G.W. Douglas , Arnica plantaginea Pursh , Arnica sornborgeri Fern. , Arnica terrae-novae Fern.

ssp. tomentosa (Macoun) G.W. & G.R. Dougl. Synonymy: Arnica alpina ssp. tomentosa (Macoun) Maguire , Arnica alpina var. tomentosa (Macoun) Cronq. , Arnica tomentosa Macoun

cernua T.J. Howell Synonymy: Arnica chandleri Rydb.

chamissonis Less.

ssp. chamissonis

var. chamissonis Synonymy: Arnica chamissonis ssp. genuina Maguire

var. interior Maguire

ssp. foliosa (Nutt.) Maguire

var. andina (Nutt.) Ediger & Barkl. Synonymy: Arnica chamissonis var. foliosa (Nutt.) Maguire , Arnica chamissonis var. jepsoniana Maguire , Arnica foliosa Nutt.

var. bernardina (Greene) Maguire Synonymy: Arnica bernardina Greene

var. incana (Gray) Hultén Synonymy: Arnica chamissonis ssp. incana (Gray) Maguire , Arnica foliosa var. incana Gray

var. maguirei (A. Nels.) Maguire

cordifolia Hook. Synonymy: Arnica cordifolia ssp. genuina Maguire , Arnica cordifolia var. humilis (Rydb.) Maguire , Arnica cordifolia var. pumila (Rydb.) Maguire , Arnica cordifolia var. whitneyi (Fern.) Maguire , Arnica hardinae St. John , Arnica humilis Rydb. , Arnica paniculata A. Nels. , Arnica whitneyi Fern.

discoidea Benth. Synonymy: Arnica discoidea var. alata (Rydb.) Cronq. , Arnica discoidea var. eradiata (Gray) Cronq. , Arnica grayi Heller , Arnica parviflora Gray , Arnica parviflora ssp. alata (Rydb.) Maguire

X diversifolia Greene (pro sp.) [amplexicaulis or mollis X cordifolia or latifolia]

frigida C.A. Mey. ex Iljin

ssp. frigida Synonymy: Arnica frigida var. glandulosa Boivin , Arnica griscomii ssp. frigida (C.A. Mey. ex Iljin) S.J. Wolf , Arnica louiseana ssp. frigida (C.A. Mey. ex Iljin) Maguire , Arnica louiseana var. brevifolia (Rydb.) Maguire , Arnica louiseana var. frigida (C.A. Mey. ex Iljin) Welsh , Arnica louiseana var. illiamnae (Rydb.) Maguire , Arnica louiseana var. mendenhallii (Rydb.) Maguire , Arnica louiseana var. pilosa Maguire , Arnica snyderi Raup

ssp. griscomii (Fern.) S.R. Downie Synonymy: Arnica griscomii Fern. , Arnica louiseana ssp. griscomii (Fern.) Maguire , Arnica louiseana var. griscomii (Fern.) Boivin

fulgens Pursh

gracilis Rydb. Synonymy: Arnica latifolia var. gracilis (Rydb.) Cronq.

lanceolata Nutt. Synonymy: Arnica mollis var. petiolaris Fern.

latifolia Bong. Synonymy: Arnica latifolia var. angustifolia Herder

lessingii (Torr. & Gray) Greene Synonymy: Arnica lessingii ssp. norbergii Hultén & Maguire

lonchophylla Greene

ssp. arnoglossa (Greene) Maguire Synonymy: Arnica arnoglossa Greene , Arnica lonchophylla var. arnoglossa (Greene) Boivin

ssp. lonchophylla Synonymy: Arnica alpina ssp. lonchophylla (Greene) Taylor & MacBryde , Arnica alpina var. lonchophylla (Greene) Welsh , Arnica chionopappa Fern. , Arnica gaspensis Fern. , Arnica lonchophylla ssp. chionopappa (Fern.) Maguire

longifolia D.C. Eat. Synonymy: Arnica longifolia ssp. genuina Maguire , Arnica longifolia ssp. myriadenia (Piper) Maguire

louiseana Farr Synonymy: Arnica louiseana var. genuina Maguire

mollis Hook. Synonymy: Arnica mollis var. silvatica (Greene) Maguire

nevadensis Gray Synonymy: Arnica tomentella Greene

parryi Gray

ssp. parryi Synonymy: Arnica parryi ssp. genuina Maguire

ssp. sonnei (Greene) Maguire Synonymy: Arnica parryi var. sonnei (Greene) Cronq. , Arnica sonnei Greene

rydbergii Greene Synonymy: Arnica cascadensis St. John

sororia Greene Synonymy: Arnica fulgens var. sororia (Greene) G.W. & G.R. Dougl.

spathulata Greene Synonymy: Arnica cusickii Rydb. , Arnica spathulata ssp. eastwoodiae (Rydb.) Maguire , Arnica spathulata var. eastwoodiae (Rydb.) Ediger & Barkl.

unalaschcensis Less.

venosa Hall

viscosa Gray Synonymy: Chrysopsis shastensis Jepson

Arnoglossum Raf. - INDIAN-PLANTAIN

atriplicifolium (L.) H.E. Robins. Synonymy: Cacalia atriplicifolia L. , Cacalia rotundifolia (Raf.) House , Mesadenia atriplicifolia (L.) Raf.

diversifolium (Torr. & Gray) H.E. Robins. Synonymy: Cacalia diversifolia Torr. & Gray , Mesadenia diversifolia (Torr. & Gray) Greene

floridanum (Gray) H.E. Robins. Synonymy: Cacalia floridana Gray , Mesadenia floridana (Gray) Greene

muehlenbergii (Schultz-Bip.) H.E. Robins. Synonymy: Arnoglossum reniforme (Hook.) H.E. Robins. , Cacalia muehlenbergii (Schultz-Bip.) Fern. , Cacalia reniformis Muhl. ex Willd., non Lam. , Mesadenia reniformis Raf. , Senecio muehlenbergii Schultz-Bip.

ovatum (Walt.) H.E. Robins. Present in the Texas flora (treated as Cacalia ovata Walt. by Hatch et al, 1990) and known locally as: Lanceleaf indian plantain (Texas Distribution by vegetation zone) Synonymy: Cacalia elliottii (Harper) Shinners , Cacalia lanceolata Nutt. , Cacalia lanceolata var. elliottii (Harper) Kral & R.K. Godfrey , Cacalia lanceolata var. virescens (Harper) Shinners , Cacalia ovata Walt. , Mesadenia elliottii Harper , Mesadenia lanceolata (Nutt.) Raf. , Mesadenia lanceolata var. virescens Harper , Mesadenia maxima Harper

plantagineum Raf. Present in the Texas flora (treated as Cacalia plantaginea (Raf.) Shinners by Hatch et al, 1990) and known locally as: Groovestem indian plantain (Texas Distribution by vegetation zone) Synonymy: Cacalia paniculata Raf. , Cacalia plantaginea (Raf.) Shinners , Cacalia pteranthes Raf. , Cacalia tuberosa Nutt. , Mesadenia tuberosa (Nutt.) Britt.

sulcatum (Fern.) H.E. Robins. Synonymy: Cacalia sulcata Fern. , Mesadenia sulcata (Fern.) Harper

Arnoseris Gaertn. - LAMB-SUCCORY

minima (L.) Schweig. & Koerte Synonymy: Hyoseris minima L.

Artemisia L. - SAGEBRUSH AND WORMWOOD

abrotanum L. Synonymy: Artemisia procera Willd.

absinthium L.

var. absinthium

var. insipida Stechmann

alaskana Rydb. Synonymy: Artemisia tyrellii Rydb.

aleutica Hultén

annua L.

arbuscula Nutt.

ssp. arbuscula Synonymy: Artemisia tridentata ssp. arbuscula (Nutt.) Hall & Clements , Seriphidium arbusculum (Nutt.) W.A. Weber

ssp. longicaulis Winward & McArthur

ssp. longiloba (Osterhout) L. Shultz Synonymy: Artemisia arbuscula var. longiloba (Osterhout) Dorn , Artemisia longiloba (Osterhout) Beetle , Artemisia spiciformis var. longiloba Osterhout , Seriphidium arbusculum ssp. longilobum (Osterhout) W.A. Weber

ssp. thermopola Beetle

arctica Less.

ssp. arctica Synonymy: Artemisia norvegica ssp. saxatilis (Bess.) Hall & Clements , Artemisia norvegica var. saxatilis (Bess.) Jepson

ssp. beringensis (Hultén) Hult‚n Synonymy: Artemisia arctica var. beringensis Hultén

ssp. comata (Rydb.) Hultén Synonymy: Artemisia comata Rydb. , Artemisia norvegica var. comata (Rydb.) Welsh

ssp. saxicola (Rydb.) Hultén Synonymy: Artemisia norvegica var. piceetorum Welsh & Goodrich

australis Less. Synonymy: Artemisia hillebrandii Skottsberg

biennis Willd.

var. biennis

var. diffusa Dorn

bigelovii Gray Present in the Texas flora and known locally as: Bigelow sagewort (Texas Distribution by vegetation zone)

californica Less.

campestris L.

ssp. borealis (Pallas) Hall & Clements

var. borealis (Pallas) M.E. Peck Synonymy: Artemisia borealis Pallas , Artemisia borealis var. latisecta Fern. , Artemisia campestris ssp. canadensis (Michx.) Scoggan , Artemisia campestris var. canadensis (Michx.) Welsh , Artemisia canadensis Michx. , Artemisia richardsoniana Bess. , Artemisia spithamea Pursh

var. petiolata Welsh

var. purshii (Hook.) Cronq. Synonymy: Artemisia borealis ssp. purshii (Hook.) Hultén , Artemisia borealis var. purshii Hook. , Oligosporus groenlandicus (Hornem.) A.& D. Löve

var. scouleriana (Hook.) Cronq. Synonymy: Artemisia ripicola Rydb.

var. wormskioldii (Bess. ex Hook.) Cronq.

ssp. campestris Synonymy: Oligosporus campestris (L.) Cass.

ssp. caudata (Michx.) Hall & Clements Present in the Texas flora and known locally as: Threadleaf sagewort (Texas Distribution by vegetation zone) Synonymy: Artemisia campestris var. caudata (Michx.) Palmer & Steyermark , Artemisia caudata Michx. , Artemisia caudata var. calvens Lunell , Artemisia forwoodii S. Wats. , Oligosporus campestris ssp. caudatus (Michx.) W.A. Weber

ssp. pacifica (Nutt.) Hall & Clements Synonymy: Artemisia campestris var. douglasiana (Bess.) Boivin , Artemisia campestris var. pacifica (Nutt.) M.E. Peck , Artemisia campestris var. strutzia Welsh , Artemisia camporum Rydb. , Artemisia pacifica Nutt. , Oligosporus campestris ssp. pacificus (Nutt.) W.A. Weber

cana Pursh

ssp. bolanderi (Gray) G.H. Ward Synonymy: Artemisia bolanderi Gray , Artemisia tridentata ssp. bolanderi (Gray) Hall & Clements , Artemisia tridentata var. bolanderi (Gray) McMinn , Seriphidium canum ssp. bolanderi (Gray) W.A. Weber

ssp. cana Synonymy: Seriphidium canum (Pursh) W.A. Weber

ssp. viscidula (Osterhout) Beetle Synonymy: Artemisia argilosa Beetle , Artemisia cana var. viscidula Osterhout , Seriphidium canum ssp. viscidulum (Osterhout) W.A. Weber

carruthii Wood ex Carruth. Present in the Texas flora and known locally as: Carruther sagewort (Texas Distribution by vegetation zone) Synonymy: Artemisia carruthii var. wrightii (Gray) Blake , Artemisia kansana Britt.

douglasiana Bess. Synonymy: Artemisia vulgaris var. douglasiana (Bess.) St. John

dracunculus L. Present in the Texas flora and known locally as: False-tarragon sagewort (Texas Distribution by vegetation zone)

ssp. dracunculus Synonymy: Artemisia dracunculoides Pursh , Artemisia dracunculoides var. dracunculina (S. Wats.) Blake , Artemisia glauca var. dracunculina (S. Wats.) Fern. , Oligosporus dracunculus (L.) Poljakov , Oligosporus dracunculus ssp. dracunculinus (S. Wats.) W.A. Weber

ssp. glauca (Pallas ex Willd.) Hall & Clements Synonymy: Artemisia dracunculus var. glauca (Pallas ex Willd.) Bess. , Artemisia glauca Pallas ex Willd. , Oligosporus dracunculus ssp. glaucus (Pallas ex Willd.) A.& D. Löve

filifolia Torr. Present in the Texas flora and known locally as: Sand sagewort (Texas Distribution by vegetation zone) Synonymy: Oligosporus filifolius (Torr.) W.A. Weber

franserioides Greene

frigida Willd. Present in the Texas flora and known locally as: Fringed sagewort, estafiata, prairie sagewort (Texas Distribution by vegetation zone)

furcata Bieb.

var. furcata Synonymy: Artemisia hyperborea Rydb. , Artemisia tacomensis Rydb. , Artemisia trifurcata Steph. ex Spreng.

var. heterophylla (Bess.) Hultén Synonymy: Artemisia heterophylla Bess.

globularia Cham. ex Bess. Synonymy: Artemisia flava Jurtzev , Artemisia globularia var. lutea Hultén

glomerata Ledeb.

var. glomerata

var. subglabrata Hultén

hookeriana Bess.

kauaiensis (Skottsberg) Skottsberg Synonymy: Artemisia hillebrandii var. kauaiensis Skottsberg

krushiana Bess.

laciniata Willd. Synonymy: Artemisia laciniatiformis Komarov

lindleyana Bess. Synonymy: Artemisia prescottiana Bess.

longifolia Nutt.

ludoviciana Nutt. Present in the Texas flora and known locally as: Louisiana sagewort (Texas Distribution by vegetation zone)

ssp. albula (Woot.) Keck Synonymy: Artemisia albula Woot. , Artemisia ludoviciana var. albula (Woot.) Shinners

ssp. candicans (Rydb.) Keck Synonymy: Artemisia candicans Rydb. , Artemisia ludoviciana var. latiloba Nutt.

ssp. estesii Chambers

ssp. incompta (Nutt.) Keck Synonymy: Artemisia incompta Nutt. , Artemisia ludoviciana var. incompta (Nutt.) Cronq.

ssp. ludoviciana Synonymy: Artemisia diversifolia Rydb. , Artemisia gnaphalodes Nutt. , Artemisia herriotii Rydb. , Artemisia ludoviciana ssp. typica Keck , Artemisia ludoviciana var. americana (Bess.) Fern. , Artemisia ludoviciana var. brittonii (Rydb.) Fern. , Artemisia ludoviciana var. gnaphalodes (Nutt.) Torr. & Gray , Artemisia ludoviciana var. latifolia (Bess.) Torr. & Gray , Artemisia ludoviciana var. pabularis (A. Nels.) Fern. , Artemisia pabularis (A. Nels.) Rydb. , Artemisia purshiana Bess. , Artemisia vulgaris ssp. ludoviciana (Nutt.) Hall & Clements , Artemisia vulgaris var. ludoviciana (Nutt.) Kuntze

ssp. mexicana (Willd. ex Spreng.) Keck Synonymy: Artemisia ludoviciana var. mexicana (Willd. ex Spreng.) Gray , Artemisia mexicana Willd. ex Spreng. , Artemisia neomexicana Greene ex Rydb. , Artemisia vulgaris var. mexicana (Willd. ex Spreng.) Torr. & Gray

ssp. redolens (Gray) Keck Synonymy: Artemisia ludoviciana var. redolens (Gray) Shinners , Artemisia redolens Gray

ssp. sulcata (Rydb.) Keck Synonymy: Artemisia sulcata Rydb.

macrobotrys Ledeb.

mauiensis (Gray) Skottsberg Synonymy: Artemisia mauiensis var. diffusa Skottsberg

michauxiana Bess. Synonymy: Artemisia vulgaris ssp. michauxiana (Bess.) St. John

nesiotica Raven Synonymy: Artemisia californica var. insularis (Rydb.) Munz

nova A. Nels.

var. duchesnicola Welsh & Goodrich

var. nova Synonymy: Artemisia arbuscula ssp. nova (A. Nels.) G.H. Ward , Artemisia arbuscula var. nova (A. Nels.) Cronq. , Artemisia tridentata ssp. nova (A. Nels.) Hall & Clements , Seriphidium novum (A. Nels.) W.A. Weber

packardiae J. Grimes & Ertter

palmeri Gray

papposa Blake & Cronq.

parryi Gray Synonymy: Artemisia laciniata ssp. parryi (Gray) W.A. Weber

pattersonii Gray

pedatifida Nutt. Synonymy: Oligosporus pedatifidus (Nutt.) Poljakov

pontica L.

porteri Cronq.

pycnocephala (Less.) DC.

pygmaea Gray Synonymy: Seriphidium pygmaeum (Gray) W.A. Weber

rigida (Nutt.) Gray Synonymy: Artemisia trifida var. rigida Nutt. , Seriphidium rigidum (Nutt.) W.A. Weber

rothrockii Gray Synonymy: Artemisia tridentata ssp. rothrockii (Gray) Hall & Clements , Artemisia tridentata var. rothrockii (Gray) McMinn , Seriphidium rothrockii (Gray) W.A. Weber

rupestris L.

ssp. rupestris

ssp. woodii Neilson Synonymy: Artemisia frigida var. williamsiae Welsh

scoparia Waldst. & Kit.

scopulorum Gray

senjavinensis Bess.

serrata Nutt.

spinescens D.C. Eat. Synonymy: Picrothamnus desertorum Nutt.

stelleriana Bess.

suksdorfii Piper

tilesii Ledeb.

ssp. elatior (Torr. & Gray) Hultén Synonymy: Artemisia elatior (Torr. & Gray) Rydb. , Artemisia tilesii var. elatior Torr. & Gray

ssp. gormanii (Rydb.) Hultén Synonymy: Artemisia gormanii Rydb.

ssp. tilesii

ssp. unalaschcensis (Bess.) Hultén Synonymy: Artemisia tilesii var. unalaschcensis Bess.

tridentata Nutt.

ssp. parishii (Gray) Hall & Clements Synonymy: Artemisia tridentata var. parishii (Gray) Jepson , Seriphidium tridentatum ssp. parishii (Gray) W.A. Weber

ssp. spiciformis (Osterhout) Kartesz & Gandhi Synonymy: Artemisia spiciformis Osterhout

ssp. tridentata Synonymy: Artemisia angusta Rydb. , Artemisia tridentata var. angustifolia Gray , Seriphidium tridentatum (Nutt.) W.A. Weber

ssp. vaseyana (Rydb.) Beetle Synonymy: Artemisia tridentata var. pauciflora Winward & Goodrich , Artemisia tridentata var. vaseyana (Rydb.) Boivin , Artemisia vaseyana Rydb. , Seriphidium tridentatum ssp. vaseyanum (Rydb.) W.A. Weber , Seriphidium vaseyanum (Rydb.) W.A. Weber

ssp. wyomingensis Beetle & Young Synonymy: Artemisia tridentata var. wyomingensis (Beetle & Young) Welsh , Seriphidium tridentatum ssp. wyomingense (Beetle & Young) W.A. Weber

ssp. xericensis Winward ex R. Rosentreter & R. Kelsey

tripartita Rydb.

ssp. rupicola Beetle Synonymy: Artemisia tripartita var. rupicola (Beetle) Dorn

ssp. tripartita Synonymy: Artemisia tridentata ssp. trifida (Nutt.) Hall & Clements , Artemisia trifida Nutt. , Seriphidium tripartitum (Rydb.) W.A. Weber

umbelliformis Lam. Synonymy: Artemisia laxa (Lam.) Fritsch

vulgaris L.

var. glabra Ledeb.

var. kamtschatica Bess.

var. selengensis (Turcz. ex Bess.) Maxim. Synonymy: Artemisia selengensis Turcz. ex Bess. , Artemisia tilesii var. aleutica (Hultén) Welsh , Artemisia unalaskensis Rydb. , Artemisia unalaskensis var. aleutica Hultén

var. latiloba Ledeb.

var. vulgaris

Aster L. - ASTER

adnatus Nutt. Synonymy: Lasallea adnata (Nutt.) Semple & Brouillet , Symphyotrichum adnatum (Nutt.) Nesom , Virgulus adnatus (Nutt.) Reveal & Keener

alpinus L.

var. vierhapperi (Onno) Cronq. Synonymy: Aster alpinus ssp. vierhapperi Onno

X amethystinus Nutt. (pro sp.) [ericoides X novae-angliae] Synonymy: Lasallea X amethystina (Nutt.) Semple & Brouillet , Symphyotrichum X amethystinum (Nutt.) Nesom , Virgulus X amethystinus (Nutt.) Reveal & Keener

anomalus Engelm. Synonymy: Symphyotrichum anomalum (Engelm.) Nesom

anticostensis Fern. Synonymy: Symphyotrichum anticostense (Fern.) Nesom

ascendens Lindl. Synonymy: Aster adscendens Lindl. , Aster chilensis ssp. adscendens (Lindl.) Cronq. , Aster macounii Rydb. , Aster subgriseus Rydb. , Symphyotrichum ascendens (Lindl.) Nesom , Virgulaster ascendens (Lindl.) Semple

avitus Alexander Synonymy: Eurybia avita (Alexander) Nesom

X batesii Rydb. (pro sp.) [ericoides X oblongifolius] Synonymy: Symphyotrichum X batesii (Rydb.) Nesom

behringensis Gandog. (NOTE: Presence in the North American flora not certain. Please contact BONAP if vouchered records are available.)

borealis (Torr. & Gray) Prov. Synonymy: Aster franklinianus Rydb. , Aster junceus auct. non Ait. , Aster junciformis Rydb. , Aster laxifolius var. borealis Torr. & Gray , Symphyotrichum boreale (Torr. & Gray) A.& D. Löve

bracei Britt. ex Small Synonymy: Aster tenuifolius var. aphyllus R.W. Long , Symphyotrichum bracei (Britt. ex Small) Nesom

bracteolatus Nutt. Synonymy: Symphyotrichum bracteolatum (Nutt) Nesom

campestris Nutt.

var. bloomeri (Gray) Gray Synonymy: Aster bloomeri Gray , Symphyotrichum campestre var. bloomeri (Nutt.) Nesom

var. campestris Synonymy: Symphyotrichum campestre (Nutt.) Nesom , Virgulus campestris (Nutt.) Reveal & Keener

chapmanii Torr. & Gray Synonymy: Eurybia chapmanii (Torr. & Gray) Nesom

chilensis Nees

var. chilensis Synonymy: Symphyotrichum chilense (Nees) Nesom

var. invenustus (Greene) Jepson Synonymy: Aster invenustus Greene , Symphyotrichum chilense var. invenustum (Greene) Nesom

var. medius Jepson Synonymy: Symphyotrichum chilense var. medium (Jepson) Nesom

chlorolepis Burgess Synonymy: Aster divaricatus var. chlorolepis (Burgess) Ahles , Eurybia chlorolepis (Burgess) Nesom

ciliolatus Lindl.

var. ciliolatus Synonymy: Aster lindleyanus Torr. & Gray , Aster saundersii Burgess , Symphyotrichum ciliolatum (Lindl.) A.& D. Löve

var. comatus (Fern.) A.G. Jones Synonymy: Symphyotrichum ciliolatum var. comatum (Fern.) Nesom

var. maccallae (Rydb.) A.G. Jones Synonymy: Aster maccallae Rydb. , Symphyotrichum ciliolatum var. maccallae (Rydb.) Nesom

var. wilsonii (Rydb.) A.G. Jones Synonymy: Aster wilsonii Rydb. , Symphyotrichum ciliolatum var. wilsonii (Rydb.) Nesom

X columbianus Piper (pro sp.) [campestris X ericoides] Synonymy: Symphyotrichum X columbianum (Piper) Nesom

concolor L. Synonymy: Aster concolor var. simulatus (Small) R.W. Long , Aster plumosus Small , Aster simulatus Small , Lasallea concolor (L.) Semple & Brouillet , Virgulus concolor (L.) Reveal & Keener , Symphyotrichum concolor (L.) Nesom

conspicuus Lindl. Synonymy: Eurybia conspicua (Lindl.) Nesom

X cordalenus Henderson (pro sp.) [hendersonii X occidentalis] (NOTE: Presence in the North American flora not certain. Please contact BONAP if vouchered records are av

cordifolius L.

var. cordifolius Synonymy: Symphyotrichum cordifolium (L.) Nesom

var. furbishiae Fern. Synonymy: Symphyotrichum cordifolium var. furbishiae (Fern.) Nesom

var. laevigatus Porter Synonymy: Aster cordifolius ssp. laevigatus (Porter) A.G. Jones , Aster lowrieanus Porter , Aster plumarius Burgess , Symphyotrichum lowrieanum (Porter) Nesom

var. lanceolatus Porter Synonymy: Aster cordifolius var. incisus Britt. , Aster lowrieanus var. incisus (Britt.) Porter , Aster lowrieanus var. lanceolatus Porter , Symphyotrichum cordifolium var. lanceolatum (Porter) Nesom

var. polycephalus Porter Synonymy: Symphyotrichum cordifolium var. polycephalum (Porter) Nesom

var. racemiflorus Fern. Synonymy: Symphyotrichum cordifolium var. racemiflorum (Fern.) Nesom

var. sagittifolius (Wedemeyer ex Willd.) A.G. Jones Synonymy: Aster cordifolius ssp. sagittifolius (Wedemeyer ex Willd.) A.G. Jones , Aster cordifolius var. moratus (Shinners) Shinners , Aster finkii var. moratus Shinners , Aster sagittifolius Wedemeyer ex Willd. , Symphyotrichum cordifolium var. moratum (Shinners) Nesom , Symphyotrichum sagittifolium (Wedemeyer ex Willd.) Nesom

cusickii Gray Synonymy: Aster foliaceus var. cusickii (Gray) Cronq. , Symphyotrichum cusickii (Gray) Nesom

defoliatus Parish Synonymy: Aster bernardinus Hall , Aster deserticola J.F. Macbr. , Symphyotrichum defoliatum (Parish) Nesom , Virgulaster bernardinus (Hall) Semple

depauperatus Fern. Synonymy: Aster ericoides var. pusillus Gray , Aster pilosus var. pusillus (Gray) A.G. Jones , Symphyotrichum depauperatum (Fern.) Nesom

divaricatus L. Synonymy: Aster boykinii Burgess , Aster carmesinus Burgess , Aster castaneus Burgess , Aster claytonii Burgess , Aster excavatus Burgess , Aster flexilis Burgess , Aster stilettiformis Burgess , Aster tenebrosus Burgess , Eurybia divaricata (L.) Nesom

drummondii Lindl.

var. drummondii Synonymy: Aster finkii Rydb. , Aster sagittifolius var. drummondii (Lindl.) Shinners , Symphyotrichum drummondii (Lindl.) Nesom , Symphyotrichum X finkii (Rydb.) Nesom

var. parviceps (Shinners) A.G. Jones Present in the Texas flora (treated as Aster drummondii Lindl. ssp. parviceps (Shinners) A. Jones by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Aster drummondii ssp. parviceps (Shinners) A.G. Jones , Aster texanus var. parviceps Shinners , Symphyotrichum drummondii var. parviceps (Shinners) Nesom

var. texanus (Burgess) A.G. Jones Present in the Texas flora (treated as Aster drummondii Lindl. ssp. texanus (Burgess) A. Jones by Hatch et al, 1990) and known locally as: Texas aster (Texas Distribution by vegetation zone) Synonymy: Aster drummondii ssp. texanus (Burgess) A.G. Jones , Aster texanus Burgess , Symphyotrichum drummondii var. texanum (Burgess) Nesom

dumosus L. Present in the Texas flora and known locally as: Bushy aster (Texas Distribution by vegetation zone)

var. dodgei Fern. Synonymy: Symphyotrichum dumosum var. dodgei (Fern.) Nesom

var. dumosus Synonymy: Aster coridifolius Michx. , Aster dumosus var. coridifolius (Michx.) Torr. & Gray , Aster dumosus var. gracilentus Torr. & Gray , Aster pinifolius Alexander, non Nees , Symphyotrichum dumosum (L.) Nesom

var. gracilipes Wieg. Synonymy: Aster gracilipes (Wieg.) Alexander , Symphyotrichum dumosum var. gracilipes (Wieg.) Nesom

var. pergracilis Wieg. Synonymy: Symphyotrichum dumosum var. peragracile (Wieg.) Nesom

var. strictior Torr. & Gray Synonymy: Symphyotrichum dumosum var. strictior (Torr. & Gray) Nesom

var. subulifolius Torr. & Gray Synonymy: Symphyotrichum dumosum var. subulifolium (Torr. & Gray) Nesom

eatonii (Gray) T.J. Howell Synonymy: Aster foliaceus var. eatonii Gray , Aster mearnsii Rydb. , Aster oregonus auct. non (Nutt.) Torr. & Gray

ericoides L. Present in the Texas flora and known locally as: Heath aster (Texas Distribution by vegetation zone)

var. ericoides Synonymy: Aster multiflorus Ait. , Aster multiflorus var. exiguus Fern. , Aster polycephalus Rydb. , Lasallea ericoides (L.) Semple & Brouillet , Symphyotrichum ericoides (L.) Nesom , Virgulus ericoides (L.) Reveal & Keener

var. prostratus (Kuntze) Blake Synonymy: Aster exiguus Rydb. , Aster multiflorus var. prostratus Kuntze , Symphyotrichum ericoides var. prostratum (Kuntze) Nesom

var. pansus (Blake) Boivin Synonymy: Aster ericoides ssp. pansus (Blake) A.G. Jones , Aster multiflorus var. pansus Blake , Aster pansus (Blake) Cronq. , Symphyotrichum ericoides var. pansum (Blake) Nesom

var. stricticaulis (Torr. & Gray) F.C. Gates Synonymy: Aster multiflorus var. stricticaulis Torr. & Gray , Aster stricticaulis (Torr. & Gray) Rydb. , Symphyotrichum ericoides var. stricticaule (Torr. & Gray) Nesom

eryngiifolius Torr. & Gray Synonymy: Eurybia eryngiifolia (Torr. & Gray) Nesom

X eulae Shinners (pro sp.) [lanceolatus X praealtus] (NOTE: Presence in the North American flora not certain. Please contact BONAP if vouchered records are available.) Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Symphyotrichum eulae (Shinners) Nesom

falcatus Lindl.

var. commutatus (Torr. & Gray) A.G. Jones Present in the Texas flora (treated as Aster falcatus Lindl. ssp. commutatus (Gray) A. Jones by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Aster commutatus (Torr. & Gray) Gray , Aster commutatus var. polycephalus Blake, non Aster polycephalus Rydb. , Aster cordineri A. Nels. , Aster ericoides var. commutatus (Torr. & Gray) Boivin p.p. , Aster falcatus ssp. commutatus (Torr. & Gray) A.G. Jones , Aster multiflorus var. commutatus Torr. & Gray , Aster nahanniensis Cody , Symphyotrichum falcatum var. commutatum (Torr. & Gray) Cody

var. crassulus (Rydb.) Cronq. Synonymy: Aster adsurgens auct. non Greene , Aster commutatus var. crassulus (Rydb.) Blake , Aster crassulus Rydb. , Symphyotrichum falcatum var. crassulum (Rydb.) Nesom

var. falcatus Synonymy: Aster elegantulus Porsild , Aster ericoides var. commutatus (Torr. & Gray) Boivin p.p. , Aster ramulosus Lindl. , Lasallea falcata (Lindl.) Semple & Brouillet , Symphyotrichum falcatum (Lindl.) Nesom , Virgulus falcatus (Lindl.) Reveal & Keener

fendleri Gray Present in the Texas flora and known locally as: Fendler aster (Texas Distribution by vegetation zone) Synonymy: Symphyotrichum fendleri (Gray) Nesom , Virgulus fendleri (Gray) Reveal & Keener

foliaceus Lindl. ex DC.

var. apricus Gray Synonymy: Aster apricus (Gray) Rydb. , Aster subspicatus var. apricus (Gray) Boivin , Symphyotrichum foliaceum var. apricum (Gray) Nesom

var. canbyi Gray Synonymy: Aster foliaceus var. burkei Gray , Aster phyllodes Rydb. , Aster tweedyi Rydb. , Symphyotrichum foliaceum var. canbyi (Gray) Nesom

var. foliaceus Synonymy: Aster foliaceus var. sublinearis D.C. Eat. & Grisc. , Symphyotrichum foliaceum (DC.) Nesom

var. parryi (D.C. Eat.) Gray Synonymy: Aster ascendens var. parryi D.C. Eat. , Aster diabolicus Piper , Aster foliaceus var. frondeus Gray , Aster foliaceus var. subpetiolatus Fern. , Aster frondeus (Gray) Greene , Symphyotrichum foliaceum var. parryi (D.C. Eat.) Nesom

fontinalis Alexander Synonymy: Aster patens var. floridanus R.W. Long , Symphyotrichum fontinale (Alexander) Nesom

fragilis Willd.

var. brachypholis (Small) A.G. Jones Synonymy: Aster brachypholis Small

var. fragilis Synonymy: Aster vimineus auct. non Lam.

var. subdumosus (Wieg.) A.G. Jones Synonymy: Aster vimineus var. subdumosus Wieg. , Symphyotrichum racemosum var. subdumosum (Wieg.) Nesom

furcatus Burgess Synonymy: Eurybia furcata (Burgess) Nesom

georgianus Alexander Synonymy: Aster patens var. georgianus (Alexander) Cronq. , Symphyotrichum georgianum (Alexander) Nesom , Virgulus georgianus (Alexander) Semple , Virgulus patens var. georgianus (Alexander) Reveal & Keener

glaucodes Blake

var. formosus (Greene) Kittell Synonymy: Eucephalus formosus Greene

var. glaucodes Synonymy: Aster glaucus Torr. & Gray, non Nees , Eucephalus glaucus Nutt. , Eurybia glauca (Nutt.) Nesom

gracilis Nutt. Synonymy: Eurybia compacta Nesom

grandiflorus L. Synonymy: Lasallea grandiflora (L.) Semple & Brouillet , Symphyotrichum grandiflorum (L.) Nesom , Virgulus grandiflorus (L.) Reveal & Keener

X gravesii Burgess (pro sp.) [dumosus X laevis] Synonymy: Symphyotrichum X gravesii (Burgess) Nesom

greatae Parish Synonymy: Symphyotrichum greatae (Parish) Nesom

hallii Gray Synonymy: Aster chilensis ssp. hallii (Gray) Cronq. , Symphyotrichum hallii (Gray) Nesom

hendersonii Fern. Synonymy: Aster cusickii var. lyallii Gray , Aster foliaceus var. lyallii (Gray) Cronq. , Symphyotrichum hendersonii (Fern.) Nesom

X herveyi Gray (pro sp.) [macrophyllus X spectabilis] Synonymy: Aster commixtus auct. non (Nees) Kuntze , Eurybia commixta auct. non Nees , Eurybia X herveyi (Gray) Nesom

integrifolius Nutt. Synonymy: Eurybia integrifolia (Nutt.) Nesom

jessicae Piper Synonymy: Symphyotrichum jessicae (Piper) Nesom

jonesiae Lamboy Synonymy: Eurybia jonesiae (Lamboy) Nesom

laevis L.

var. concinnus (Willd.) House Synonymy: Aster concinnus Willd. , Symphyotrichum laeve var. concinnum (Willd.) Nesom

var. geyeri Gray Present in the Texas flora (treated as Aster laevis L. var. guadalupensis A. Jones by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Aster geyeri (Gray) T.J. Howell , Aster laevis var. guadalupensis A.G. Jones , Aster pickettianus Suksdorf , Symphyotrichum laeve var. geyeri (Gray) Nesom

var. laevis Synonymy: Aster falcidens Burgess , Aster laevis var. falcatus Farw. , Aster steeleorum Shinners , Symphyotrichum laeve (L.) A.& D. Löve

var. purpuratus (Nees) A.G. Jones Synonymy: Aster attenuatus auct. non Lindl. ex Hook. , Aster purpuratus Nees , Aster virgatus Ell., non Moench , Symphyotrichum laeve var. purpuratum (Nees) Nesom

lanceolatus Willd.

ssp. hesperius (Gray) Semple & Chmielewski Present in the Texas flora and known locally as: Siskiyou aster (Texas Distribution by vegetation zone) Synonymy: Aster hesperius Gray , Aster hesperius var. laetevirens (Greene) Cronq. , Aster hesperius var. wootonii Greene , Aster laetevirens Greene , Aster osterhoutii Rydb. , Aster wootonii (Greene) Greene , Symphyotrichum hesperium (Gray) A.& D. Löve , Symphyotrichum lanceolatum ssp. hesperium (Gray) Nesom , Symphyotrichum lanceolatum var. hesperium (Gray) Nesom

ssp. lanceolatus Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

var. hirsuticaulis Semple & Chmielewski Synonymy: Symphyotrichum lanceolatum var. hirsuiticaule (Semple & Chmielewski) Nesom

var. interior (Wieg.) Semple & Chmielewski Synonymy: Aster interior Wieg. , Aster lanceolatus ssp. interior (Wieg.) A.G. Jones , Aster lanceolatus var. interior (Wieg.) A.G. Jones , Aster simplex var. interior (Wieg.) Cronq. , Symphyotrichum lanceolatum var. interior (Wieg.) Nesom

var. lanceolatus Synonymy: Aster bellidiflorus Willd. , Aster lamarckianus Nees , Aster lanceolatus ssp. simplex (Willd.) A.G. Jones , Aster lanceolatus var. simplex (Willd.) A.G. Jones , Aster laxus Willd. , Aster paniculatus Lam., p.p. non P. Mill. , Aster paniculatus var. simplex (Willd.) Burgess , Aster simplex Willd. , Aster simplex var. estuarinus Boivin , Aster simplex var. ramosissimus (Torr. & Gray) Cronq. , Aster tenuifolius var. ramosissimus Torr. & Gray , Symphyotrichum lanceolatum (Willd.) Nesom , Symphyotrichum simplex (Willd.) A.& D. Löve

var. latifolius Semple & Chmielewski Synonymy: Symphyotrichum lanceolatum var. latifolium (Semple & Chmielewski) Nesom

lateriflorus (L.) Britt. Present in the Texas flora and known locally as: California aster (Texas Distribution by vegetation zone)

var. angustifolius Wieg. Synonymy: Aster agrostifolius Burgess , Symphyotrichum lateriflorum var. angustifolium (Wieg.) Nesom

var. flagellaris Shinners Synonymy: Symphyotrichum lateriflorum var. flagellare (Shinners) Nesom

var. hirsuticaulis (Lindl. ex DC.) Porter Synonymy: Aster acadiensis Shinners , Aster hirsuticaulis Lindl. ex DC. , Aster lateriflorus var. tenuipes Wieg. , Aster saxatilis (Fern.) Blanch. nom. illeg. , Aster tradescantii L. , Aster tradescantii var. saxatilis (Fern.) House , Aster vimineus var. saxatilis Fern. , Symphyotrichum lateriflorum var. hirsuticaule (DC.) Nesom , Symphyotrichum lateriflorum var. tenuipes (Wieg.) Nesom , Symphyotrichum tradescantii (L.) Nesom

var. horizontalis (Desf.) Farw. Synonymy: Aster horizontalis Desf. , Aster lateriflorus var. pendulus (Ait.) Burgess , Aster pendulus Ait. , Symphyotrichum lateriflorum var. horizontale (Desf.) Nesom

var. indutus Shinners

var. lateriflorus Synonymy: Aster vimineus Lam. , Solidago lateriflora L. , Symphyotrichum lateriflorum (L.) A.& D. Löve

var. spatelliformis (Burgess) A.G. Jones Synonymy: Aster spatelliformis Burgess , Symphyotrichum lateriflorum var. spatelliforme (Burgess) Nesom

lentus Greene Synonymy: Aster chilensis var. lentus (Greene) Jepson , Aster chilensis var. sonomensis (Greene) Jepson , Aster sonomensis Greene , Symphyotrichum lentum (Greene) Nesom

longifolius Lam. Synonymy: Aster eminens Willd. , Aster junceus Ait. , Aster salicifolius sensu Willd., non Lam. nec Ait. , Symphyotrichum longifolium (Lam.) Nesom

X longulus Sheldon (pro sp.) [?borealis X puniceus] Synonymy: Symphyotrichum X longulum (Sheldon) Nesom

macrophyllus L.

var. apricensis Burgess Synonymy: Aster nobilis Burgess

var. excelsior Burgess

var. ianthinus (Burgess) Fern. Synonymy: Aster ianthinus Burgess , Aster multiformis Burgess

var. macrophyllus Synonymy: Aster riciniatus Burgess , Aster roscidus Burgess , Aster violaris Burgess , Eurybia macrophylla (L.) Cass.

var. pinguifolius Burgess

var. sejunctus Burgess

var. velutinus Burgess

meritus A. Nels. Synonymy: Aster sibiricus var. meritus (A. Nels.) Raup , Eurybia merita (A. Nels.) Nesom

mirabilis Torr. & Gray Synonymy: Aster commixtus auct. non (Nees) Kuntze , Eurybia commixta auct. non Nees , Eurybia mirabilis (Torr. & Gray) Nesom

mollis Rydb. Synonymy: Symphyotrichum molle (Rydb.) Nesom

novae-angliae L. Synonymy: Lasallea novae-angliae (L.) Semple & Brouillet , Symphyotrichum novae-angliae (L.) Nesom , Virgulus novae-angliae (L.) Reveal & Keener

novi-belgii L.

var. elodes (Torr. & Gray) Gray Synonymy: Aster elodes Torr. & Gray , Symphyotrichum novi-belgii var. elodes (Torr. & Gray) Nesom

var. johannensis (Fern.) A.G. Jones Synonymy: Aster johannensis Fern. , Aster novi-belgii ssp. johannensis (Fern.) A.G. Jones , Aster rolandii Shinners

var. litoreus Gray Synonymy: Symphyotrichum novi-belgii var. litoreum (Gray) Nesom

var. novi-belgii Synonymy: Aster novi-belgii var. rosaceus Rouss. , Symphyotrichum novi-belgii (L.) Nesom

var. tardiflorus (L.) A.G. Jones Synonymy: Aster crenifolius (Fern.) Cronq. , Aster crenifolius var. arcuans (Fern.) Cronq. , Aster foliaceus auct. non Lindl. ex DC. , Aster foliaceus var. arcuans Fern. , Aster gaspensis Victorin , Aster novi-belgii ssp. tardiflorus (L.) A.G. Jones , Aster robynsianus Rouss. , Aster tardiflorus L. , Symphyotrichum crenifolium (Fern.) Nesom , Symphyotrichum novi-belgii var. tardiflorum (L.) Nesom

var. villicaulis (Gray) Boivin Synonymy: Aster johannensis var. villicaulis (Gray) Fern. , Aster longifolius var. villicaulis Gray , Aster tardiflorus var. vestitus Fern.

oblongifolius Nutt. Present in the Texas flora and known locally as: Aromatic aster (Texas Distribution by vegetation zone) Synonymy: Aster kumleinii Fries ex Gray , Aster oblongifolius var. angustatus Shinners , Aster oblongifolius var. orientis Shinners , Aster oblongifolius var. rigidulus Gray , Lasallea oblongifolia (Nutt.) Semple & Brouillet , Symphyotrichum oblongifolium (Nutt.) Nesom , Virgulus oblongifolius (Nutt.) Reveal & Keener

occidentalis (Nutt.) Torr. & Gray

var. delectabilis (Hall) Ferris Synonymy: Aster delectabilis Hall

var. fremontii (Torr. & Gray) A.G. Jones Synonymy: Aster ascendens var. fremontii Torr. & Gray , Aster fremontii (Torr. & Gray) Gray , Symphyotrichum spathulatum var. fremontii (Torr. & Gray) Nesom

var. intermedius Gray Synonymy: Symphyotrichum spathulatum var. intermedium (Gray) Nesom

var. occidentalis Synonymy: Aster spathulatus Lindl. , Symphyotrichum spathulatum (Lindl.) Nesom , Tripolium occidentale Nutt.

var. parishii (Gray) Ferris Synonymy: Aster fremontii var. parishii Gray

var. yosemitanus (Gray) Cronq. Synonymy: Aster ascendens var. yosemitanus Gray , Aster paludicola Piper , Aster yosemitanus (Gray) Greene , Symphyotrichum spathulatum var. yosemitanum (Gray) Nesom

ontarionis Wieg. Synonymy: Aster diffusus var. thyrsoides Gray , Aster lateriflorus var. thyrsoides (Gray) Sheldon , Aster missouriensis Britt., non Kuntze , Aster missouriensis var. thyrsoides (Gray) Wieg. , Aster pantotrichus Blake , Aster pantotrichus var. thyrsoides (Gray) Blake , Aster tradescantii var. thyrsoides (Gray) Boivin , Symphyotrichum ontarione (Wieg.) Nesom

oolentangiensis Riddell Present in the Texas flora and known locally as: Azure aster (Texas Distribution by vegetation zone)

var. laevicaulis (Fern.) A.G. Jones

var. oolentangiensis Synonymy: Aster azureus Lindl. , Symphyotrichum oolentagiense (Riddell) Nesom

var. poaceus (Burgess) A.G. Jones Synonymy: Aster azureus var. poaceus (Burgess) Fern. , Aster poaceus Burgess , Aster vernalis Engelm. ex Burgess , Symphyotrichum oolentangiense var. poaceum (Burgess) Nesom

paludosus Ait.

ssp. hemisphericus (Alexander) Cronq. Present in the Texas flora and known locally as: Low aster (Texas Distribution by vegetation zone) Synonymy: Aster gattingeri Alexander, non Kuntze , Aster hemisphericus Alexander , Aster pedionomus Alexander , Aster verutifolius Alexander , Eurybia hemispherica (Alexander) Nesom , Heleastrum hemisphericum (Alexander) Shinners

ssp. paludosus Synonymy: Eurybia paludosa (Aiton) Nesom

parviceps (Burgess) Mackenzie & Bush Synonymy: Aster depauperatus var. parviceps (Burgess) Fern. , Aster ericoides var. parviceps Burgess , Aster pilosus ssp. parviceps (Burgess) A.G. Jones , Symphyotrichum parviceps (Burgess) Nesom

patens Ait.

var. gracilis Hook. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Aster tenuicaulis (C. Mohr) Burgess , Symphyotrichum patens var. gracile (Hook.) Nesom , Virgulus patens var. gracilis (Hook.) Reveal & Keener

var. patens Present in the Texas flora and known locally as: Skydrop aster (Texas Distribution by vegetation zone) Synonymy: Lasallea patens (Ait.) Semple & Brouillet , Symphyotrichum patens (Ait.) Nesom , Virgulus patens (Ait.) Reveal & Keener

var. patentissimus (Lindl. ex DC.) Torr. & Gray Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Aster continuus Small , Aster patentissimus Lindl. ex DC. , Aster subsessilis Burgess , Symphyotrichum patens var. patentissimum (Lindl. ex DC.) Nesom , Virgulus patens var. patentissimus (Lindl. ex DC.) Reveal & Keener

perelegans A. Nels. & J.F. Macbr. Synonymy: Aster elegans (Nutt.) Torr. & Gray, non Willd. , Eucephalus elegans Nutt. , Eucephalus perelegans (A. Nels. & J.F. Macbr.) W.A. Weber

phlogifolius Muhl. ex Willd. Synonymy: Aster patens var. phlogifolius (Muhl. ex Willd.) Nees , Symphyotrichum phlogifolium (Muhl. ex Willd.) Nesom , Virgulus patens var. phlogifolius (Muhl. ex Willd.) Reveal & Keener

pilosus Willd.

var. demotus Blake Synonymy: Aster juniperinus Burgess , Aster racemosus Ell. , Aster ramosissimus P. Mill. , Symphyotrichum racemosum (Ell.) Nesom

var. pilosus Synonymy: Aster ericoides var. platyphyllus Torr. & Gray , Aster ericoides var. villosus (Michx.) Torr. & Gray , Aster pilosus var. platyphyllus (Torr. & Gray) Blake , Aster villosus Michx. , Symphyotrichum pilosum (Willd.) Nesom

var. priceae (Britt.) Cronq. Synonymy: Aster kentuckiensis Britt. , Aster priceae Britt. , Symphyotrichum priceae (Britt.) Nesom

var. pringlei (Gray) Blake Synonymy: Aster ericoides var. pringlei Gray , Aster faxonii Porter , Aster polyphyllus Willd., non Moench , Aster pringlei (Gray) Britt. , Symphyotrichum pilosum var. pringlei (Gray) Nesom

porteri Gray Synonymy: Symphyotrichum porteri (Gray) Nesom

potosinus Gray Synonymy: Aster lemmonii Gray , Symphyotrichum potosinum (Gray) Nesom

praealtus Poir.

var. angustior Wieg. Synonymy: Symphyotrichum praeltum var. angustior (Wieg.) Nesom

var. coerulescens (DC.) A.G. Jones Present in the Texas flora (treated as Aster praealtus Poir. var. texicola Wieg. by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Aster coerulescens DC. , Aster praealtus var. texicola Wieg. , Symphyotrichum praealtum var. texicola (Wieg.) Nesom

var. imbricatior Wieg.

var. nebraskensis (Britt.) Wieg. Synonymy: Aster nebraskensis Britt.

var. praealtus Present in the Texas flora and known locally as: Tall aster (Texas Distribution by vegetation zone) Synonymy: Aster salicifolius Ait., non Lam. , Symphyotrichum praealtum (Poir.) Nesom

var. subasper (Lindl.) Wieg. Synonymy: Aster subasper Lindl. , Symphyotrichum praeltum var. subasperum (Lindl.) Nesom

prenanthoides Muhl. ex Willd. Synonymy: Symphyotrichum prenanthoides (Muhl. ex Willd.) Nesom

puniceus L.

var. calderi (Boivin) Lepage Synonymy: Aster calderi Boivin , Symphyotrichum puniceum var. calderi (Boivin) Nesom

var. elliottii (Torr. & Gray) A.G. Jones Synonymy: Aster elliottii Torr. & Gray , Aster puniceus ssp. elliottii (Torr. & Gray) A.G. Jones , Symphyotrichum elliotii (Torr. & Gray) Nesom

var. firmus (Nees) Torr. & Gray Synonymy: Aster firmus Nees , Aster lucidulus (Gray) Wieg. , Aster puniceus ssp. firmus (Nees) A.G. Jones , Aster puniceus var. lucidulus Gray , Symphyotrichum firmum (Nees) Nesom

var. perlongus Fern.

var. puniceus Synonymy: Aster conduplicatus Burgess , Aster forwoodii S. Wats. , Aster puniceus var. calvus Shinners , Aster puniceus var. compactus Fern. , Aster puniceus var. demissus Lindl. , Aster puniceus var. oligocephalus Fern. , Symphyotrichum puniceum (L.) A.& D. Löve

var. scabricaulis (Shinners) A.G. Jones Present in the Texas flora and known locally as: Roughstem aster (Texas Distribution by vegetation zone) Synonymy: Aster scabricaulis Shinners , Symphyotrichum puniceum var. scabricaule (Shinners) Nesom

radula Ait.

var. radula Synonymy: Eurybia radula (Ait.) Nesom

var. strictus (Pursh) Gray Synonymy: Aster strictus Pursh, non Poir.

radulinus Gray Synonymy: Aster eliasii A. Nels. , Eurybia radulina (Gray) Nesom , Weberaster radulinus (Gray) A.& D. Löve

retroflexus Lindl. ex DC. Synonymy: Aster curtisii Torr. & Gray , Symphyotrichum retroflexum (Lindl. ex DC.) Nesom

X salignus Willd. [lanceolatus X novi-belgii] Synonymy: Symphyotrichum X salignum (Willd.) Nesom

saxicastellii J.N. Campbell & M. Medley Synonymy: Eurybia saxicastellii (J.N. Campbell & M. Medley) Nesom

X schistosus Steele (pro sp.) [cordifolius X laevis] Synonymy: Symphyotrichum X schistosum (Steele) Nesom

schreberi Nees Synonymy: Aster chasei G.N. Jones , Aster curvescens Burgess , Aster glomeratus (Bernh. ex Nees) Burgess , Eurybia glomerata Bernh. ex Nees , Eurybia schreberi (Nees) Nees

sericeus Vent.

var. microphyllus DC. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Aster phyllolepis Torr. & Gray , Aster pratensis Raf. , Lasallea sericea ssp. pratensis (Raf.) Semple & Brouillet , Symphyotrichum pratense (Raf.) Nesom , Virgulus pratensis (Raf.) Reveal & Keener

var. sericeus Present in the Texas flora and known locally as: Silky aster (Texas Distribution by vegetation zone) Synonymy: Lasallea sericea (Vent.) Greene , Symphyotrichum sericeum (Vent.) Nesom , Virgulus sericeus (Vent.) Reveal & Keener

shortii Lindl. Synonymy: Aster camptosorus Small , Symphyotrichum shortii (Lindl.) Nesom

sibiricus L.

var. giganteus (Hook.) Gray Synonymy: Aster richardsonii Spreng. , Aster sibiricus ssp. richardsonii (Spreng.) A.& D. Löve , Eurybia sibirica var. gigantea (Hook.) Nesom

var. pygmaeus (Lindl.) Cody Synonymy: Aster pygmaeus Lindl. , Aster sibiricus ssp. pygmaeus (Lindl.) A.& D. Löve , Eurybia pygmaea (Lindl.) Nesom

var. sibiricus (NOTE: Presence in the North American flora not certain. Please contact BONAP if vouchered records are available.) Synonymy: Eurybia sibirica (L.) Nesom

simmondsii Small Synonymy: Aster sulznerae Small , Symphyotrichum simmondsii (Small) Nesom

spectabilis Ait.

var. cinerascens Blake

var. spectabilis Synonymy: Aster commixtus (Nees) Kuntze , Aster smallii Alexander , Eurybia commixta Nees , Eurybia spectabilis (Ait.) Nesom

var. suffultus Fern.

spinulosus Chapman Synonymy: Eurybia spinulosa (Chapman) Nesom

X subgeminatus (Fern.) Boivin (pro sp.) [ciliolatus X novi-belgii] Synonymy: Aster foliaceus var. subgeminatus Fern. , Symphyotrichum subgeminatum (Fern.) Nesom

subspicatus Nees

var. grayi (Suksdorf) Cronq. Synonymy: Aster grayi Suksdorf , Symphyotrichum subspicatum var. grayi (Suksdorf) Nesom

var. subspicatus Synonymy: Aster douglasii Lindl. , Aster oregonum (Nutt.) Torr. & Gray , Symphyotrichum subspicatum (Nees) Nesom , Tripolium oregonum Nutt.

subulatus Michx.

var. cubensis (DC.) Shinners Synonymy: Aster inconspicuus Less. , Symphyotrichum expansum (Poepp. ex Spreng.) Nesom

var. euroauster Fern. & Grisc. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

var. ligulatus Shinners Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Aster divaricatus (Nutt.) Torr. & Gray , Aster exilis Ell. , Aster neomexicanus Woot. & Standl. , Symphyotrichum divaricatum (Nutt.) Nesom

var. obtusifolius Fern.

var. sandwicensis (Gray) A.G. Jones Present in the Texas flora and known locally as: Saltmarsh aster (Texas Distribution by vegetation zone) Synonymy: Aster divaricatus var. sandwicensis Gray , Aster exilis var. australis Gray , Aster sandwicensis Gray , Aster subulatus var. australis (Gray) Shinners , Symphyotrichum squamata (Spreng.) Nesom

var. subulatus Synonymy: Symphyotrichum subulatum (Michx.) Nesom

surculosus Michx. Synonymy: Eurybia surculosa (Michx.) Nesom

tataricus L. f.

tenuifolius L. Present in the Texas flora and known locally as: Saline aster (Texas Distribution by vegetation zone) Synonymy: Symphyotrichum tenuifolium (L.) Nesom

tripolium L.

turbinellus Lindl. Synonymy: Symphyotrichum turbinellum (Lindl.) Nesom

undulatus L.

var. asperulus Wood Synonymy: Aster asperifolius Burgess , Aster diversifolius Michx. , Aster linguiformis Burgess , Aster mohrii Burgess , Aster undulatus var. diversifolius (Michx.) Gray

var. loriformis Burgess Synonymy: Aster loriformis (Burgess) Burgess

var. undulatus Synonymy: Aster claviger Burgess , Aster corrigiatus Burgess , Aster gracilescens Burgess , Aster proteus Burgess , Aster sylvestris Burgess , Aster triangularis (Burgess) Burgess , Aster truellius Burgess , Aster undulatus var. triangularis Burgess , Symphyotrichum undulatum (L.) Nesom

urophyllus Lindl. Synonymy: Aster hirtellus Lindl. , Aster sagittifolius auct. non Wedemeyer ex Willd. , Aster sagittifolius var. urophyllus (Lindl.) Burgess , Symphyotrichum urophyllum (Lindl.) Nesom

X versicolor Willd. (pro sp.) [laevis X novi-belgii] Synonymy: Symphyotrichum X versicolor (Willd.) Nesom

walteri Alexander Synonymy: Aster squarrosus sensu Walt., non All. , Lasallea walteri (Alexander) Semple & Brouillet , Symphyotrichum walteri (Alexander) Nesom , Virgulus walteri (Alexander) Reveal & Keener

wasatchensis (M.E. Jones) Blake Synonymy: Aster glaucodes ssp. pulcher Blake , Aster glaucodes var. pulcher (Blake) Kearney & Peebles ex Welsh , Aster glaucus var. wasatchensis M.E. Jones , Eurybia pulchra (Blake) Nesom , Eurybia wasatchensis (M.E. Jones) Nesom

welshii Cronq. Synonymy: Symphyotrichum welshii (Cronq.) Nesom

X woldenii Rydb. (pro sp.) [laevis X praealtus] Synonymy: Symphyotrichum X woldenii (Rydb.) Nesom

yukonensis Cronq. Synonymy: Symphyotrichum yukonense (Cronq.) Nesom , Virgulus yukonensis (Cronq.) Reveal & Keener

Astranthium Nutt. - WESTERN-DAISY

integrifolium (Michx.) Nutt.

ssp. ciliatum (Raf.) DeJong Present in the Texas flora and known locally as: Western daisy (Texas Distribution by vegetation zone) Synonymy: Astranthium integrifolium var. ciliatum (Raf.) Larsen , Astranthium integrifolium var. trifolium (Raf.) Shinners

ssp. integrifolium Synonymy: Bellis integrifolia Michx.

robustum (Shinners) DeJong Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Astranthium integrifolium var. robustum Shinners

Atrichoseris Gray - PARACHUTE-PLANT

platyphylla (Gray) Gray Synonymy: Malacothrix platyphylla Gray

Baccharis L. - FALSE WILLOW

angustifolia Michx.

bigelovii Gray Present in the Texas flora and known locally as: Bigelow baccharis (Texas Distribution by vegetation zone)

brachyphylla Gray Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

dioica Vahl

douglasii DC.

emoryi Gray

glomeruliflora Pers.

halimifolia L. Present in the Texas flora and known locally as: Eastern baccharis, sea-myrtle, consumption-weed (Texas Distribution by vegetation zone) Synonymy: Baccharis halimifolia var. angustior DC.

havardii Gray Present in the Texas flora and known locally as: Havard baccharis (Texas Distribution by vegetation zone)

malibuensis Beauchamp & Henderson sp. nov. ined.

myrsinites (Lam.) Pers.

neglecta Britt. Present in the Texas flora and known locally as: Roosevelt weed, new deal weed, jara dulce (Texas Distribution by vegetation zone)

pilularis DC. Synonymy: Baccharis pilularis ssp. consanguinea (DC.) C.B. Wolf , Baccharis pilularis var. consanguinea (DC.) Kuntze

plummerae Gray

ssp. glabrata Hoover

ssp. plummerae

pteronioides DC. Present in the Texas flora and known locally as: Yerba de pasmo (Texas Distribution by vegetation zone)

salicifolia (Ruiz & Pav¢n) Pers. Present in the Texas flora and known locally as: Seepwillow, waterwillow, water-wally, jara (Texas Distribution by vegetation zone) Synonymy: Baccharis glutinosa Pers. , Baccharis viminea DC. , Molina salicifolia Ruiz & Pav¢n

salicina Torr. & Gray Present in the Texas flora and known locally as: Willow baccharis (Texas Distribution by vegetation zone)

sarothroides Gray

sergiloides Gray

texana (Torr. & Gray) Gray Present in the Texas flora and known locally as: Prairie baccharis (Texas Distribution by vegetation zone) Synonymy: Linosyris texana Torr. & Gray

thesioides Kunth

vanessae Beauchamp

wrightii Gray Present in the Texas flora and known locally as: Wright baccharis (Texas Distribution by vegetation zone)

Bahia Lag. - FALSE GOLDFIELDS

absinthifolia Benth. Present in the Texas flora and known locally as: Hairyseed bahia (Texas Distribution by vegetation zone)

var. absinthifolia

var. dealbata (Gray) Gray

bigelovii Gray Present in the Texas flora and known locally as: Bigelow bahia (Texas Distribution by vegetation zone)

biternata Gray

dissecta (Gray) Britt. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Amauria dissecta Gray (NOTE: Taxonomic placement not certain)

pedata Gray Present in the Texas flora and known locally as: Bluntscale bahia (Texas Distribution by vegetation zone)

schaffneri S. Wats.

Baileya Harvey & Gray ex Gray - DESERT-MARIGOLD

multiradiata Harvey & Gray ex Gray Present in the Texas flora and known locally as: Desert bailey (Texas Distribution by vegetation zone) Synonymy: Baileya multiradiata var. thurberi (Rydb.) Kittell

pauciradiata Harvey & Gray ex Gray

pleniradiata Harvey & Gray ex Gray Synonymy: Baileya multiradiata var. pleniradiata (Harvey & Gray ex Gray) Coville , Baileya perennis (A. Nels.) Rydb.

Balduina Nutt. - HONEYCOMB-HEAD

angustifolia (Pursh) B.L. Robins. Synonymy: Actinospermum angustifolium (Pursh) Torr. & Gray

atropurpurea Harper Synonymy: Endorima atropurpurea (Harper) Small

uniflora Nutt. Synonymy: Endorima uniflora (Nutt.) Raf.

Balsamita P. Mill. - COSTMARY

major Desf. Synonymy: Balsamita major var. tanacetoides (Boiss.) Moldenke , Chrysanthemum balsamita (L.) Baill., non L. , Chrysanthemum balsamita var. tanacetoides Boiss. , Pyrethrum majus (Desf.) Tzvelev , Tanacetum balsamita L.

Balsamorhiza Nutt. - BALSAMROOT

X bonseri St. John (pro sp.) [rosea X sagittata]

careyana Gray

var. careyana

var. intermedia Cronq.

deltoidea Nutt.

hookeri (Hook.) Nutt.

var. hirsuta (Nutt.) A. Nels. Synonymy: Balsamorhiza hirsuta Nutt.

var. hispidula (Sharp) Cronq. Synonymy: Balsamorhiza hispidula Sharp

var. hookeri

var. idahoensis (Sharp) Cronq. Synonymy: Balsamorhiza macrophylla var. idahoensis Sharp

var. lagocephala (Sharp) Cronq. Synonymy: Balsamorhiza hirsuta var. lagocephala Sharp , Balsamorhiza hookeri var. lanata Sharp

var. neglecta (Sharp) Cronq. Synonymy: Balsamorhiza hirsuta var. neglecta Sharp

incana Nutt.

macrolepis Sharp

var. macrolepis

var. platylepis (Sharp) Ferris Synonymy: Balsamorhiza hookeri var. platylepis (Sharp) Cronq. , Balsamorhiza platylepis Sharp

macrophylla Nutt.

rosea A. Nels. & J.F. Macbr.

sagittata (Pursh) Nutt.

sericea W.A. Weber

serrata A. Nels. & J.F. Macbr.

X terebinthacea (Hook.) Nutt. (pro sp.) [deltoidea X hookeri]

X tomentosa Rydb. (pro sp.) [incana X sagittata]

Baltimora L. - BEAUTYHEAD

recta L.

Bartlettia Gray - BARTLETT-DAISY

scaposa Gray

Bebbia Greene - SWEETBUSH

juncea (Benth.) Greene Present in the Texas flora and known locally as: Rush b. (Texas Distribution by vegetation zone)

var. aspera Greene

Bellis L. - LAWNDAISY

perennis L.

Berkheya Ehrh. - GOUSBLOM

heterophylla O. Hoffmann

Berlandiera DC. - GREENEYES

X betonicifolia (Hook.) Small (pro sp.) [pumila X texana] Present in the Texas flora and known locally as: Hairy greeneyes (Texas Distribution by vegetation zone) Synonymy: Berlandiera texana var. betonicifolia (Hook.) Torr. & Gray

X humilis Small (pro sp.) [pumila X subacaulis]

lyrata Benth. Present in the Texas flora and known locally as: Lyreleaf greeneyes, Berlandier daisy (Texas Distribution by vegetation zone) Synonymy: Berlandiera lyrata var. macrophylla Gray

pumila (Michx.) Nutt. Present in the Texas flora and known locally as: Soft greeneyes (Texas Distribution by vegetation zone) Synonymy: Berlandiera dealbata (Torr. & Gray) Small , Berlandiera tomentosa (Pursh) Nutt. , Berlandiera tomentosa var. dealbata Torr. & Gray

subacaulis (Nutt.) Nutt.

texana DC. Present in the Texas flora and known locally as: Texas greeneyes (Texas Distribution by vegetation zone)

Bidens L. - BEGGARTICKS

alba (L.) DC.

var. radiata (Schultz-Bip.) Ballard ex T.E. Melchert Synonymy: Bidens pilosa var. radiata Schultz-Bip.

amplectens Sherff Synonymy: Bidens gracilis Nutt. , Bidens halawana O. Deg. & Sherff

amplissima Greene

aristosa (Michx.) Britt. Present in the Texas flora and known locally as: Bearded beggar's ticks, awnless beggar's ticks, tickseed sunflower (Texas Distribution by vegetation zone) Synonymy: Bidens aristosa var. fritcheyi Fern. , Bidens aristosa var. mutica (Gray) Gattinger , Bidens aristosa var. retrorsa (Sherff) Wunderlin , Bidens involucrata (Nutt.) Britt. , Bidens polylepis Blake , Bidens polylepis var. retrorsa Sherff

asymmetrica (Levl.) Sherff

aurea (Ait.) Sherff Synonymy: Bidens aurea var. wrightii (Gray) Sherff , Bidens heterophylla Ortega , Coreopsis aurea Ait.

bidentoides (Nutt.) Britt. Synonymy: Bidens bidentoides var. mariana (Blake) Sherff , Bidens mariana Blake

bigelovii Gray Present in the Texas flora and known locally as: Bigelow beggar's ticks (Texas Distribution by vegetation zone)

bipinnata L. Present in the Texas flora and known locally as: Spanish needles (Texas Distribution by vegetation zone) Synonymy: Bidens bipinnata var. biternatoides Sherff

campylotheca Schultz-Bip.

ssp. campylotheca Synonymy: Bidens X magnidisca O. Deg. & Sherff

ssp. pentamera (Sherff) Ganders & Nagata Synonymy: Bidens campylotheca var. pentamera Sherff , Bidens pentamera (Sherff) O. Deg. & Sherff

ssp. waihoiensis St. John

cernua L. Synonymy: Bidens cernua var. dentata (Nutt.) Boivin , Bidens cernua var. elliptica Wieg. , Bidens cernua var. integra Wieg. , Bidens cernua var. minima (Huds.) Pursh , Bidens cernua var. oligodonta Fern. & St. John , Bidens cernua var. radiata DC. , Bidens glaucescens Greene

cervicata Sherff Synonymy: Bidens asplenioides Sherff , Bidens fecunda O. Deg. & Sherff ex Sherff , Bidens ferax O. Deg. & Sherff , Bidens stokesii Sherff

conjuncta Sherff

connata Muhl. ex Willd. Synonymy: Bidens connata var. ambiversa Fassett , Bidens connata var. anomala Farw. , Bidens connata var. fallax (Warnst.) Sherff , Bidens connata var. gracilipes Fern. , Bidens connata var. inundata Fern. , Bidens connata var. petiolata (Nutt.) Farw. , Bidens connata var. pinnata S. Wats. , Bidens connata var. submutica Fassett

coronata (L.) Britt. Synonymy: Bidens coronata var. brachyodonta Fern. , Bidens coronata var. tenuiloba (Gray) Sherff , Bidens coronata var. trichosperma (Michx.) Fern. , Bidens trichosperma (Michx.) Britt.

cosmoides (Gray) Sherff Synonymy: Bidens cosmoides var. refracta Hochr. , Bidens X dimidiata O. Deg. & Sherff ex Sherff

cynapiifolia Kunth Synonymy: Bidens bipinnata var. cynapiifolia (Kunth) G. Maza , Bidens cynapiifolia var. portoricensis (Spreng.) O.E. Schulz , Bidens cynapiifolia var. tenuis O.E. Schulz

discoidea (Torr. & Gray) Britt. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

eatonii Fern. Synonymy: Bidens eatonii var. fallax Fern. , Bidens eatonii var. illicita Blake , Bidens eatonii var. interstes Fassett , Bidens eatonii var. kennebecensis Fern. , Bidens eatonii var. major Fassett , Bidens eatonii var. mutabilis Fassett , Bidens eatonii var. simulans Fassett

ferulifolia (Jacq.) DC. Synonymy: Coreopsis ferulifolia Jacq.

forbesii Sherff

ssp. forbesii Synonymy: Bidens asymmetrica var. subocculata O. Deg. & Sherff ex Sherff , Bidens napaliensis Sherff

ssp. kahiliensis Ganders & Nagata

frondosa L. Present in the Texas flora and known locally as: Devil's beggar's ticks, stick-tights (Texas Distribution by vegetation zone) Synonymy: Bidens frondosa var. anomala Porter ex Fern. , Bidens frondosa var. caudata Sherff , Bidens frondosa var. pallida Wieg. , Bidens frondosa var. stenodonta Fern. & St. John

gardneri Baker

hawaiensis Gray Synonymy: Bidens skottsbergii Sherff , Bidens skottsbergii var. conglutinata (O. Deg. & Sherff) Sherff , Bidens skottsbergii var. pololuensis O. Deg. & Sherff ex Sherff

heterodoxa (Fern.) Fern. & St. John

var. agnostica Fern.

var. atheistica Fern. Synonymy: Bidens infirma Fern.

var. heterodoxa Synonymy: Bidens tripartita var. heterodoxa Fern.

var. monardifolia Fern.

var. orthodoxa Fern. & St. John

heterosperma Gray

hillebrandiana (Drake) O. Deg.

ssp. hillebrandiana

ssp. polycephala Nagata & Ganders

hyperborea Greene

var. arcuans Fern.

var. gaspensis Fern.

var. hyperborea Synonymy: Bidens hyperborea var. colpophila (Fern. & St. John) Fern. , Bidens hyperborea var. laurentiana Fassett

var. svensonii Fassett Synonymy: Bidens hyperborea var. cathancensis Fern.

laevis (L.) B.S.P. Present in the Texas flora and known locally as: Smooth begger's ticks (Texas Distribution by vegetation zone) Synonymy: Bidens elegans Greene , Bidens nashii Small , Helianthus laevis L.

lemmonii Gray

leptocephala Sherff Present in the Texas flora and known locally as: Few-flower beggar's ticks (Texas Distribution by vegetation zone)

macrocarpa (Gray) Sherff Synonymy: Bidens macrocarpa var. ovatifolia (Gray) Sherff

mauiensis (Gray) Sherff Synonymy: Bidens awaluana O.& I. Deg. & Sherff , Bidens mauiensis var. ciliata St. John , Bidens mauiensis var. cuneatoides Sherff , Bidens mauiensis var. forbesiana Sherff , Bidens mauiensis var. lanaiensis Sherff , Bidens mauiensis var. media Sherff

menziesii (Gray) Sherff

ssp. filiformis (Sherff) Ganders & Nagata Synonymy: Bidens menziesii var. filiformis Sherff , Bidens menziesii var. leptondontia Sherff

ssp. menziesii Synonymy: Bidens menziesii var. lepida O. Deg. & Sherff , Bidens salicoides Sherff

micrantha Gaud.

ssp. ctenophylla (Sherff) Nagata & Ganders Synonymy: Bidens ctenophylla Sherff

ssp. kalealaha Nagata & Ganders Listed by the U.S. FWS as endangered, the FWS local name is Ko`oko`olau and the FWS range is: U.S.A. (HI). Listed on May 15, 1992 (Volume 57 Federal Register 20787). Synonymy: Bidens distans Sherff , Bidens micrantha var. rudimentifera Sherff

ssp. micrantha Synonymy: Bidens degeneri Sherff , Bidens degeneri var. apioides Sherff , Bidens micrantha var. caduca (Sherff) Sherff , Bidens micrantha var. laciniata (Hbd.) Sherff , Bidens perversa O. Deg. & Sherff , Bidens perversa var. aquilonalis O. Deg. & Sherff , Bidens sandvicensis var. caduca Sherff , Bidens sandvicensis var. leiocarpa O. Deg. & Sherff

mitis (Michx.) Sherff Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Bidens mitis var. leptophylla (Nutt.) Small

molokaiensis (Hbd.) Sherff Listed by the U.S. FWS as endangered, the FWS local name is Cuneate bidens and the FWS range is: U.S.A. (HI). Listed on February 17, 1984 (Volume 49 Federal Register 6102). Treated by the FWS as Bidens cuneata. Synonymy: Bidens cuneata Sherff

X multiceps Fassett [connata X eatonii]

pilosa L. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Bidens odorata Cav. , Bidens pilosa var. bimucronata (Turcz.) Schultz-Bip. , Bidens pilosa var. minor (Blume) Sherff

populifolia Sherff

reptans (L.) G. Don

var. reptans Synonymy: Coreopsis reptans L.

var. urbanii (Greenm.) O.E. Schulz Synonymy: Bidens urbanii Greenm.

sandvicensis Less.

ssp. confusa Nagata & Ganders

ssp. sandvicensis Synonymy: Bidens coartata Sherff , Bidens graciloides Sherff , Bidens X micranthoides Sherff , Bidens obtusiloba Sherff , Bidens pulchella (Less.) Schultz-Bip. , Bidens sandvicensis var. antrorsa O. Deg. & Sherff , Bidens sandvicensis var. imminuta O. Deg. & Sherff , Bidens sandvicensis var. setosa (Sherff) Sherff , Bidens waimeana Sherff

tenuisecta Gray

torta Sherff Synonymy: Bidens fulvescens Sherff , Bidens micrantha var. kaalana Sherff , Bidens waianensis Sherff

tripartita L. Synonymy: Bidens acuta (Wieg.) Britt. , Bidens comosa (Gray) Wieg.

valida Sherff

vulgata Greene Synonymy: Bidens frondosa var. puberula Wieg. , Bidens puberula Wieg. , Bidens vulgata var. puberula (Wieg.) Greene , Bidens vulgata var. schizantha Lunell

wiebkei Sherff Listed by the U.S. FWS as endangered, the FWS local name is Ko`oko`olau and the FWS range is: U.S.A. (HI). Listed on October 8, 1992 (Volume 57 Federal Register 46339). Synonymy: Bidens nematocera (Sherff) Sherff

Bigelowia DC. - RAYLESS-GOLDENROD

nudata (Michx.) DC.

ssp. australis L.C. Anders. Synonymy: Bigelowia nudata var. australis (L.C. Anders.) Shinners

ssp. nudata Synonymy: Bigelowia virgata (Nutt.) DC. , Chondrophora nudata (Michx.) Britt. , Chondrophora virgata (Nutt.) Greene , Chrysocoma nudata Michx.

nuttallii L.C. Anders. Present in the Texas flora and known locally as: Slender bigelowia (Texas Distribution by vegetation zone)

Blennosperma Less. - STICKYSEED

bakeri Heiser Listed by the U.S. FWS as endangered, the FWS local name is Sonoma sunshine (=Baker's stickyseed) and the FWS range is: U.S.A. (CA). Listed on December 2, 1991 (Volume 56 Federal Register 61182).

nanum (Hook.) Blake

var. nanum

var. robustum J.T. Howell

Blepharipappus Hook. - EYELASHWEED

scaber Hook.

ssp. laevis (Gray) Keck

ssp. scaber

Blepharizonia Greene - BIG-TARWEED

plumosa (Kellogg) Greene

ssp. plumosa

ssp. viscida Keck

Blumea DC. - FALSE OXTONGUE

laciniata (Roxb.) DC.

sessiliflora Dcne.

viscosa (P. Mill.) Badillo Synonymy: Conyza lyrata Kunth , Conyza viscosa P. Mill. , Eschenbachia lyrata (Kunth) Britt. & Millsp.

Boltonia L'Hér. - DOLL'S-DAISY

apalachicolensis L.C. Anders.

asteroides (L.) L'Hér. Present in the Texas flora and known locally as: White boltonia (Texas Distribution by vegetation zone)

var. asteroides Synonymy: Boltonia asteroides var. glastifolia (Hill) Fern.

var. latisquama (Gray) Cronq. Synonymy: Boltonia latisquama Gray

var. recognita (Fern. & Grisc.) Cronq. Synonymy: Boltonia latisquama var. microcephala Fern. & Grisc. , Boltonia latisquama var. occidentalis Gray , Boltonia latisquama var. recognita Fern. & Grisc. , Boltonia recognita (Fern. & Grisc.) G.N. Jones

caroliniana (Walt.) Fern. Synonymy: Boltonia ravenelii Fern. & Grisc.

decurrens (Torr. & Gray) Wood Listed by the U.S. FWS as threatened - the FWS local name is Decurrent false aster and the FWS range is: U.S.A. (IL, MO). Synonymy: Boltonia asteroides var. decurrens (Torr. & Gray) Fern. , Boltonia latisquama var. decurrens (Torr. & Gray) Fern. & Grisc.

diffusa Ell. Present in the Texas flora and known locally as: Smallhead boltonia (Texas Distribution by vegetation zone)

var. diffusa

var. interior Fern. & Grisc. Synonymy: Boltonia interior (Fern. & Grisc.) G.N. Jones

Borrichia Adans. - SEASIDE-TANSY

arborescens (L.) DC. Synonymy: Buphthalmum arborescens L.

X cubana Britt. & Blake (pro sp.) [arboresens X frutescens]

frutescens (L.) DC. Present in the Texas flora and known locally as: Bushy sea-ox-eye, sea-ox-eye daisy (Texas Distribution by vegetation zone)

Brachyactis Ledeb. - RAYLESS-ASTER

ciliata (Ledeb.) Ledeb.

ssp. angusta (Lindl.) A.G. Jones Synonymy: Aster brachyactis Blake , Brachyactis angusta (Lindl.) Britt. , Tripolium angustum Lindl. , Symphyotrichum ciliatum (Ledeb.) Nesom

ssp. laurentiana (Fern.) A.G. Jones Synonymy: Aster laurentianus Fern. , Aster laurentianus var. contiguus Fern. , Aster laurentianus var. magdalenensis Fern. , Symphyotrichum laurentianum (Fern.) Nesom

frondosa (Nutt.) Gray Synonymy: Aster frondosus (Nutt.) Torr. & Gray , Symphyotrichum frondosum (Nutt.) Nesom , Tripolium frondosum Nutt.

Brickellia Ell. - BRICKELLBUSH

amplexicaulis B.L. Robins.

var. amplexicaulis

var. lanceolata (Gray) B.L. Robins.

arguta B.L. Robins.

var. arguta Synonymy: Brickellia atractyloides var. arguta (B.L. Robins.) Jepson

var. odontolepis B.L. Robins.

atractyloides Gray

baccharidea Gray Present in the Texas flora and known locally as: Resinleaf bricklellbush (Texas Distribution by vegetation zone)

betonicifolia Gray

brachyphylla (Gray) Gray

var. brachyphylla Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

var. hinckleyi (Standl.) Flyr Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Brickellia hinckleyi Standl.

var. terlinguensis Flyr Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

californica (Torr. & Gray) Gray Present in the Texas flora and known locally as: California brickellbush, pachuba (Texas Distribution by vegetation zone)

var. californica Synonymy: Bulbostylis californica Torr. & Gray

var. jepsonii B.L. Robins.

chenopodina (Greene) B.L. Robins.

conduplicata (B.L. Robins.) B.L. Robins. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

cordifolia Ell. Synonymy: Coleosanthus cordifolius (Ell.) Kuntze

coulteri Gray Present in the Texas flora and known locally as: Coulter brickellbush (Texas Distribution by vegetation zone)

cylindracea Gray & Engelm. Present in the Texas flora and known locally as: Gravelbar brickellbush (Texas Distribution by vegetation zone)

dentata (DC.) Schultz-Bip. Present in the Texas flora and known locally as: Leafy brickellbush (Texas Distribution by vegetation zone)

desertorum Coville Synonymy: Brickellia californica var. desertorum (Coville) Parish ex Hall , Coleosanthus desertorum (Coville) Coville

eupatorioides (L.) Shinners

var. chlorolepis (Woot. & Standl.) B.L. Turner Present in the Texas flora (treated as Brickellia chorolepis (Woot. & Standl.) Shinners by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Brickellia chlorolepis (Woot. & Standl.) Shinners , Brickellia leptophylla var. mexicana (Shinners) Shinners , Brickellia rosemarinifolia var. chlorolepis (Woot. & Standl.) W.A. Weber , Brickellia shaffneri (Gray) Shinners , Kuhnia chlorolepis Woot. & Standl. , Kuhnia eupatorioides var. chlorolepis (Woot. & Standl.) Cronq. , Kuhnia leptophylla var. mexicana Shinners , Kuhnia microphylla Shinners , Kuhnia rosemarinifolia var. chlorolepis (Woot. & Standl.) Blake , Kuhnia shaffneri Gray

var. corymbulosa (Torr. & Gray) Shinners Present in the Texas flora and known locally as: Plains kuhnia (Texas Distribution by vegetation zone) Synonymy: Kuhnia eupatorioides var. corymbulosa Torr. & Gray , Kuhnia hitchcockii A. Nels.

var. eupatorioides Present in the Texas flora and known locally as: False boneset (Texas Distribution by vegetation zone) Synonymy: Brickellia rosemarinifolia (Vent.) W.A. Weber , Kuhnia eupatorioides L. , Kuhnia eupatorioides var. angustifolia Raf. , Kuhnia eupatorioides var. gracilis Torr. & Gray , Kuhnia eupatorioides var. pyramidalis Raf. , Kuhnia glutinosa Ell. , Kuhnia rosemarinifolia Vent.

var. floridana (R.W. Long) B.L. Turner Synonymy: Brickellia mosieri (Small) Shinners , Kuhnia eupatorioides var. floridana R.W. Long , Kuhnia mosieri Small

var. gracillima (Gray) B.L. Turner Present in the Texas flora (treated as Brickellia leptophylla (Scheele) Shinners by Hatch et al, 1990) (Texas Distribution by vegetation zone) Synonymy: Brickellia leptophylla (Scheele) Shinners , Kuhnia eupatorioides var. gracillima Gray , Kuhnia leptophylla Scheele

var. texana (Shinners) Shinners Present in the Texas flora and known locally as: Prairie kuhnia (Texas Distribution by vegetation zone) Synonymy: Brickellia eupatorioides var. ozarkana (Shinners) Shinners , Kuhnia eupatorioides var. ozarkana Shinners , Kuhnia eupatorioides var. texana Shinners

fendleri Gray Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Brickelliastrum fendleri (Gray) King & H.E. Robins. , Eupatorium fendleri (Gray) Gray

floribunda Gray

frutescens Gray

grandiflora (Hook.) Nutt. Present in the Texas flora and known locally as: Tasselflower brickellbush (Texas Distribution by vegetation zone) Synonymy: Brickellia grandiflora var. petiolaris Gray , Coleosanthus grandiflorus (Hook.) Kuntze

greenei Gray

incana Gray

knappiana E. Drew

laciniata Gray Present in the Texas flora and known locally as: Splitleaf brickellbush (Texas Distribution by vegetation zone)

lemmonii Gray

var. lemmonii

var. wootonii (Greene) B.L. Robins. Synonymy: Brickellia lemmonii var. nelsonii (B.L. Robins.) B.L. Turner

longifolia S. Wats.

var. longifolia

var. multiflora (Kellogg) Cronq. Synonymy: Brickellia multiflora Kellogg

microphylla (Nutt.) Gray

var. microphylla

var. scabra Gray Synonymy: Brickellia microphylla ssp. scabra (Gray) W.A. Weber , Brickellia scabra (Gray) A. Nels. ex B.L. Robins.

var. watsonii (B.L. Robins.) Welsh Synonymy: Brickellia watsonii B.L. Robins.

nelsonii B.L. Robins. Present in the Texas flora, local name unknown. No Texas distribution data available

nevinii Gray

oblongifolia Nutt.

var. linifolia (D.C. Eat.) B.L. Robins. Synonymy: Brickellia linifolia D.C. Eat.

var. oblongifolia Synonymy: Brickellia oblongifolia var. typica B.L. Robins.

parvula Gray Present in the Texas flora and known locally as: Mt. Davis brickellbush (Texas Distribution by vegetation zone)

pringlei Gray

rusbyi Gray Present in the Texas flora, local name unknown. No Texas distribution data available

simplex Gray

squamulosa Gray Synonymy: Asanthus squamulosus (Gray) King & H.E. Robins.

venosa (Woot. & Standl.) B.L. Robins. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Coleosanthus venosus Woot. & Standl.

veronicifolia (Kunth) Gray

var. petrophila (B.L. Robins.) B.L. Robins. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

var. veronicifolia Synonymy: Eupatorium veronicifolium Kunth

viejensis Flyr Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

Cacaliopsis Gray - SILVERCROWN

nardosmia (Gray) Gray Synonymy: Cacalia nardosmia Gray , Cacalia nardosmia var. glabrata (Piper) Boivin , Cacaliopsis nardosmia var. glabrata Piper , Luina nardosmia (Gray) Cronq. , Luina nardosmia var. glabrata (Piper) Cronq.

Calendula L. - FIELD-MARIGOLD

arvensis L.

officinalis L.

Callistephus Cass. - CHINA-ASTER

chinensis (L.) Nees Synonymy: Aster chinensis L.

Calotis R. Br.

cuneifolia R. Br.

Calycadenia DC. - WESTERN ROSINWEED

fremontii Gray Synonymy: Calycadenia ciliosa Greene , Hemizonia fremontii (Gray) Gray , Hemizonia multiglandulosa var. sparsa Gray

hooveri G.D. Carr

mollis Gray Synonymy: Hemizonia mollis (Gray) Gray

multiglandulosa DC. Synonymy: Calycadenia campestris Greene , Calycadenia hispida (Greene) Greene , Calycadenia hispida ssp. reducta Keck , Calycadenia multiglandulosa ssp. bicolor (Greene) Keck , Calycadenia multiglandulosa ssp. cephalotes (DC.) Keck , Calycadenia multiglandulosa ssp. robusta Keck , Hemizonia hispida Greene

oppositifolia (Greene) Greene Synonymy: Hemizonia oppositifolia Greene

pauciflora Gray Synonymy: Calycadenia elegans Greene , Calycadenia pauciflora var. elegans (Greene) Jepson , Calycadenia ramulosa Greene , Hemizonia pauciflora (Gray) Gray

spicata (Greene) Greene Synonymy: Hemizonia spicata Greene

truncata DC.

ssp. microcephala Hall ex Keck

ssp. scabrella (E. Drew) Keck Synonymy: Calycadenia scabrella (E. Drew) Greene , Calycadenia truncata var. scabrella (E. Drew) Jepson , Hemizonia scabrella E. Drew , Lagophylla scabrella (E. Drew) M.E. Jones

ssp. truncata Synonymy: Hemizonia truncata (DC.) Gray

villosa DC. Synonymy: Hemizonia douglasii Gray

Calycoseris Gray - TACKSTEM

parryi Gray

wrightii Gray Present in the Texas flora and known locally as: White cupfruit (Texas Distribution by vegetation zone)

Calyptocarpus Less. - STRAGGLER-DAISY

vialis Less. Present in the Texas flora and known locally as: Prostrate lawnflower, hierba del caballo (Texas Distribution by vegetation zone) Synonymy: Synedrella vialis (Less.) Gray , Synedrellopsis grisebachii auct. non Hieron. & Kuntze

Canadanthus Nesom

modestus (Lindl.) Nesom Synonymy: Aster major (Hook.) Porter , Aster modestus Lindl. , Aster unalaschkensis var. major Hook. , Weberaster modestus (Lindl.) A.& D. Löve

Carduus L. - PLUMELESS-THISTLE

acanthoides L.

crispus L.

nutans L.

ssp. leiophyllus (Petrovic) Stojanov & Stef. Synonymy: Carduus nutans var. leiophyllus (Petrovic) ArŠnes , Carduus nutans var. vestitus (Hallier) Boivin

ssp. macrocephalus (Desf.) Nyman Present in the Texas flora (treated as Carduus nutans L. var. macrocephalus (Desf.) Boivin by Hatch et al, 1990) and known locally as: Muskthistle (Texas Distribution by vegetation zone) Synonymy: Carduus macrocephalus Desf. , Carduus nutans var. macrocephalus (Desf.) Boivin

ssp. macrolepis (Peterm.) Kazmi Synonymy: Carduus macrolepis Peterm.

ssp. nutans

X orthocephalus Wallr. [acanthoides X nutans]

pycnocephalus L.

tenuiflorus W. Curtis Present in the Texas flora and known locally as: Slender bristlethistle (Texas Distribution by vegetation zone)

Carlina L. - CARLINE-THISTLE

vulgaris L.

Carminatia Moc. ex DC. - PLUMEWEED

tenuiflora DC. Present in the Texas flora and known locally as: Plumeweed (Texas Distribution by vegetation zone)

Carphephorus Cass. - CHAFFHEAD

bellidifolius (Michx.) Torr. & Gray

carnosus (Small) C.W. James Synonymy: Litrisa carnosa Small

corymbosus (Nutt.) Torr. & Gray

odoratissimus (J.F. Gmel.) Herbert Synonymy: Trilisa odoratissima (J.F. Gmel.) Cass.

paniculatus (J.F. Gmel.) Herbert Synonymy: Trilisa paniculata (J.F. Gmel.) Cass.

pseudoliatris Cass.

tomentosus (Michx.) Torr. & Gray Synonymy: Carphephorus tomentosus var. walteri (Ell.) Fern.

Carphochaete Gray - BRISTLEHEAD

bigelovii Gray Present in the Texas flora and known locally as: Bigelow bristlehead (Texas Distribution by vegetation zone)

Carthamus L. - DISTAFF-THISTLE

lanatus L. Present in the Texas flora and known locally as: Distaff-thistle, saffron thistle (Texas Distribution by vegetation zone)

ssp. baeticus (Boiss. & Reut.) Nyman Synonymy: Carthamus baeticus (Boiss. & Reut.) Lara

ssp. lanatus

leucocaulos Sibith. & Sm.

oxyacantha Bieb.

tinctorius L.

Castalis Cass. - CAPE-MARIGOLD

tragus (Ait.) Norl. Synonymy: Dimorphotheca aurantiaca DC., non Horton

Centaurea L. - CORNFLOWER, KNAPWEED, AND STAR-THISTLE

americana Nutt. Present in the Texas flora and known locally as: American basketflower, powderpuff thistle, thornless thistle, cardo del valle (Texas Distribution by vegetation zone)

aspera L.

biebersteinii DC. Synonymy: Acosta maculosa auct. non Holub , Centaurea maculosa auct. non Lam.

bovina Velen.

calcitrapa L.

calcitrapoides L.

cineraria L.

cyanus L. Present in the Texas flora and known locally as: Cornflower, bluebottle, bachelor's-button (Texas Distribution by vegetation zone) Synonymy: Leucacantha cyanus (L.) Nieuwl. & Lunell

debeauxii Gren. & Godr.

ssp. thuillieri Dost l Synonymy: Centaurea pratensis Thuill., non Salisb.

depressa Bieb.

diffusa Lam. Synonymy: Acosta diffusa (Lam.) Soj k

diluta Ait.

eriophora L. Synonymy: Jacea pratensis Lam.

iberica Trev. ex Spreng.

jacea L.

macrocephala Puschk. ex Willd.

melitensis L. Present in the Texas flora and known locally as: Malta centaurea, malta starthistle, tocalote (Texas Distribution by vegetation zone)

montana L.

nigra L. Synonymy: Centaurea nigra var. radiata DC.

nigrescens Willd. Synonymy: Centaurea dubia ssp. vochinensis (Bernh. ex Reichenb.) Hayek , Centaurea vochinensis Bernh. ex Reichenb.

ovina Pallas ex Willd.

ssp. besseriana (DC.) Dost l Synonymy: Centaurea besseriana DC.

paniculata L.

phrygia L. Synonymy: Centaurea austriaca Willd.

X pouzinii DC. [aspera X calcitrapa]

rothrockii Greenm.

scabiosa L.

solstitialis L. Present in the Texas flora and known locally as: Barnaby starthistle, yellow starthistle (Texas Distribution by vegetation zone)

sulphurea Willd.

transalpina Schleich. ex DC. Synonymy: Centaurea dubia Suter

trichocephala Bieb. ex Willd.

triumfettii All. Synonymy: Centaurea squarrosa Willd. , Centaurea virgata Lam. , Centaurea virgata var. squarrosa (Willd.) Boiss.

Centipeda Lour. - SPREADING-SNEEZEWEED

minima (L.) A. Braun & Aschers. Synonymy: Artemisia minima L.

Centratherum Cass. - LARKDAISY

punctatum Cass.

Chaenactis DC. - PINCUSHION

alpigena C.W. Sharsmith

artemisiifolia (Harvey & Gray ex Gray) Gray

carphoclinia Gray

var. carphoclinia Synonymy: Chaenactis carphoclinia var. attenuata (Gray) M.E. Jones

var. peirsonii (Jepson) Munz

cusickii Gray

douglasii (Hook.) Hook. & Arn.

var. alpina Gray Synonymy: Chaenactis alpina (Gray) M.E. Jones , Chaenactis minuscula Greene

var. douglasii Synonymy: Chaenactis angustifolia Greene , Chaenactis brachiata Greene , Chaenactis brachiata var. stansburiana Stockwell , Chaenactis cineria Stockwell , Chaenactis douglasii var. achilleifolia (Hook. & Arn.) Gray , Chaenactis douglasii var. glandulosa Cronq. , Chaenactis douglasii var. montana M.E. Jones , Chaenactis douglasii var. nana Stockwell , Chaenactis douglasii var. rubricaulis Rydb. , Chaenactis douglasii var. typicus Cronq. , Chaenactis humilis Rydb. , Chaenactis panamintensis Stockwell , Chaenactis ramosa Stockwell , Chaenactis rubricaulis Rydb. , Chaenactis suksdorfii Stockwell

evermannii Greene Synonymy: Chaenactis nevadensis var. mainsiana (A. Nels. & J.F. Macbr.) Stockwell

fremontii Gray

glabriuscula DC.

var. glabriuscula Synonymy: Chaenactis furcata Stockwell , Chaenactis glabriuscula var. aurea (Greene) Stockwell , Chaenactis glabriuscula var. curta (Gray) Jepson , Chaenactis glabriuscula var. tenuifolia (Nutt.) Hall , Chaenactis tenuifolia Nutt.

var. heterocarpha (Torr. & Gray ex Gray) Hall Synonymy: Chaenactis glabriuscula var. gracilenta (Greene) Keck , Chaenactis heterocarpha Torr. & Gray ex Gray , Chaenactis tanacetifolia Gray , Chaenactis tanacetifolia var. gracilenta (Greene) Stockwell

var. lanosa (DC.) Hall Synonymy: Chaenactis glabriuscula var. denudata (Nutt.) Munz , Chaenactis lanosa DC.

var. megacephala Gray

var. orcuttiana (Greene) Hall Synonymy: Chaenactis orcuttiana (Greene) Parish , Chaenactis tenuifolia var. orcuttiana Greene

leucopsis Greene Synonymy: Chaenactis alpina var. leucopsis (Greene) Cockerell ex Stockwell , Chaenactis alpina var. rubella (Greene) Stockwell

macrantha D.C. Eat.

nevadensis (Kellogg) Gray

nevii Gray

parishii Gray

santolinoides Greene Synonymy: Chaenactis santolinoides var. indurata Stockwell

stevioides Hook. & Arn. Synonymy: Chaenactis gillespiei Stockwell , Chaenactis latifolia Stockwell , Chaenactis mexicana Stockwell , Chaenactis stevioides var. brachypappa (Gray) Hall , Chaenactis stevioides var. thornberi Stockwell

suffrutescens Gray Synonymy: Chaenactis suffrutescens var. incana Stockwell

thompsonii Cronq.

xantiana Gray

Chaetadelpha Gray ex S. Wats. - WHEELER'S-SKELETON-WEED

wheeleri Gray ex S. Wats.

Chaetopappa DC. - LEASTDAISY

asteroides Nutt. ex DC. Present in the Texas flora and known locally as: Common leastdaisy, Rio Grande leastdaisy (Texas Distribution by vegetation zone)

var. asteroides

var. grandis Shinners

bellidifolia (Gray & Engelm.) Shinners Present in the Texas flora and known locally as: Hairy leastdaisy (Texas Distribution by vegetation zone) Synonymy: Keerlia bellidifolia Gray & Engelm.

bellioides (Gray) Shinners Present in the Texas flora and known locally as: Manyflower leastdaisy (Texas Distribution by vegetation zone) Synonymy: Chaetopappa bellioides var. hirticaulis Shinners , Diplostelma bellioides Gray

effusa (Gray) Shinners Present in the Texas flora and known locally as: Spreading leastdaisy (Texas Distribution by vegetation zone) Synonymy: Keerlia effusa Gray

ericoides (Torr.) Nesom Present in the Texas flora and known locally as: Babywhite-aster (Texas Distribution by vegetation zone) Synonymy: Aster arenosus (Heller) Blake , Aster hirtifolius Blake , Aster leucelene Blake , Inula ericoides Torr. , Leucelene ericoides (Torr.) Greene

hersheyi Blake Present in the Texas flora and known locally as: Mat leastdaisy (Texas Distribution by vegetation zone)

imberbis (Gray) Nesom Present in the Texas flora, local name unknown. No Texas distribution data available Synonymy: Chaetopappa asteroides var. imberbis Gray

parryi Gray Present in the Texas flora and known locally as: Parry leastdaisy (Texas Distribution by vegetation zone)

Chamaechaenactis Rydb. - FULLSTEM

scaposa (Eastw.) Rydb.

var. parva Preece & Turner

var. scaposa Synonymy: Chaenactis scaposa Eastw.

Chamaemelum P. Mill. - DOG-FENNEL

fuscatum (Brot.) Vasc. Synonymy: Anthemis fuscata Brot.

mixtum (L.) All. Synonymy: Anthemis mixta L. , Ormenis mixta (L.) Dumort.

nobile (L.) All. Synonymy: Anthemis nobilis L.

Chaptalia Vent. - SUNBONNETS

albicans (Sw.) Vent. ex Steud.

dentata (L.) Cass.

nutans (L.) Polak. Synonymy: Tussilago nutans L.

texana Greene Present in the Texas flora (treated as Chaptalia nutans (L.) Polak. var. texana (Greene) Burk. by Hatch et al, 1990) and known locally as: Silverpuff (Texas Distribution by vegetation zone) Synonymy: Chaptalia nutans var. texana (Greene) Burkart

tomentosa Vent. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

Chloracantha Nesom - MEXICAN-DEVILWEED

spinosa (Benth.) Nesom Present in the Texas flora (treated as Leucosyris spinosa (Benth.) Greene by Hatch et al, 1990) and known locally as: Devil-weed a., Mexican devil-weed, spiny aster (Some authors treat this taxon as a variety of Erigeron ortegae Blake. (Texas Distribution by vegetation zone) Synonymy: Aster spinosus Benth. , Erigeron ortegae Blake , Leucosyris spinosa (Benth.) Greene

Chondrilla L. - HOGBITE

juncea L.

Chrysactinia Gray - DAMIANITA

mexicana Gray Present in the Texas flora and known locally as: Damianita (Texas Distribution by vegetation zone)

Chrysanthemum L. - CORNDAISY

carinatum Schousboe

coccineum Willd.

coronarium L.

frutescens L.

segetum L.

Chrysogonum L. - GREEN-AND-GOLD

virginianum L.

var. australe (Alexander ex Small) Ahles Synonymy: Chrysogonum australe Alexander ex Small

var. virginianum Synonymy: Chrysogonum virginianum var. dentatum Gray

Chrysoma Nutt. - WOODY-GOLDENROD

pauciflosculosa (Michx.) Greene Synonymy: Chrysoma solidaginoides Nutt. , Solidago pauciflosculosa Michx.

Chrysopsis (Nutt.) Ell. - GOLDEN-ASTER

floridana Small Listed by the U.S. FWS as endangered, the FWS local name is Florida golden aster and the FWS range is: U.S.A. (FL). Listed on May l6, 1986 (Volume 51 Federal Register 17977). Synonymy: Chrysopsis mariana var. floridana (Small) Fern. , Heterotheca floridana (Small) R.W. Long , Heterotheca mariana ssp. floridana (Small) Harms

godfreyi Semple

gossypina (Michx.) Ell.

ssp. cruiseana (Dress) Semple Synonymy: Chrysopsis cruiseana Dress , Heterotheca cruiseana (Dress) Harms

ssp. gossypina Synonymy: Chrysopsis arenicola Alexander ex Small , Chrysopsis decumbens Chapman , Chrysopsis longii Fern. , Chrysopsis pilosa (Walt.) Britt., non Nutt. , Chrysopsis trichophylla (Nutt.) Ell. , Heterotheca gossypina (Michx.) Shinners , Heterotheca trichophylla (Nutt.) Shinners , Inula gossypina Michx.

ssp. hyssopifolia (Nutt.) Semple Synonymy: Chrysopsis gigantea Small , Chrysopsis hyssopifolia Nutt. , Chrysopsis mixta Dress , Heterotheca hyssopifolia (Nutt.) R.W. Long , Heterotheca hyssopifolia var. gigantea (Small) Harms

lanuginosa Small

latisquamea Pollard Synonymy: Heterotheca latisquamea (Pollard) Harms

linearifolia Semple

ssp. dressii Semple

ssp. linearifolia

mariana (L.) Ell. Present in the Texas flora (treated as Heterotheca mariana (L.) Shinners by Hatch et al, 1990) and known locally as: Maryland goldaster (Texas Distribution by vegetation zone) Synonymy: Chrysopsis mariana var. macradenia Fern. , Heterotheca mariana (L.) Shinners , Inula mariana L.

pilosa Nutt. Present in the Texas flora (treated as Heterotheca pilosa (Nutt.) Shinners by Hatch et al, 1990) and known locally as: Soft goldaster (Texas Distribution by vegetation zone) Synonymy: Chrysopsis nuttallii Britt. , Heterotheca pilosa (Nutt.) Shinners

scabrella Torr. & Gray Synonymy: Heterotheca scabrella (Torr. & Gray) Harms

subulata Small Synonymy: Heterotheca hyssopifolia var. subulata (Small) R.W. Long , Heterotheca subulata (Small) Harms

texana Nesom Present in the Texas flora (treated as Bradburia hirtella T. & G. by Hatch et al, 1990) and known locally as: Mauchia (Texas Distribution by vegetation zone) Synonymy: Bradburia hirtella Torr. & Gray

Chrysothamnus Nutt. - RABBITBRUSH

albidus (M.E. Jones ex Gray) Greene Synonymy: Ericameria albida (M.E. Jones ex Gray) L.C. Anders.

depressus Nutt. Synonymy: Ericameria depressa (Nutt.) L.C. Anders.

eremobius L.C. Anders. Synonymy: Ericameria eremobia (L.C. Anders.) L.C. Anders

gramineus Hall Synonymy: Ericameria graminea (Hall) L.C. Anders. , Petradoria discoidea L.C. Anders.

greenei (Gray) Greene Synonymy: Chrysothamnus greenei ssp. filifolius (Rydb.) Hall & Clements , Chrysothamnus greenei var. filifolius (Rydb.) Blake , Ericameria filifolia (Rydb.) L.C. Anders.

humilis Greene Synonymy: Chrysothamnus viscidiflorus ssp. humilis (Greene) Hall & Clements , Chrysothamnus viscidiflorus var. humilis (Greene) Jepson , Ericameria humilis (Greene) L.C. Anders.

linifolius Greene Synonymy: Chrysothamnus viscidiflorus ssp. linifolius (Greene) Hall & Clements , Chrysothamnus viscidiflorus var. linifolius (Greene) Kittell , Ericameria linifolia (Greene) L.C. Anders.

molestus (Blake) L.C. Anders. Synonymy: Chrysothamnus viscidiflorus var. molestus Blake , Ericameria molesta (Blake) L.C. Anders.

pulchellus (Gray) Greene Present in the Texas flora and known locally as: Southwest rabbitbrush (Texas Distribution by vegetation zone)

ssp. baileyi (Woot. & Standl.) Hall & Clements Synonymy: Chrysothamnus baileyi Woot. & Standl. , Chrysothamnus pulchellus var. baileyi (Woot. & Standl.) Blake , Ericameria pulchella ssp. baileyi (Woot. & Standl.) L.C. Anders.

ssp. pulchellus Synonymy: Chrysothamnus pulchellus ssp. elatior (Standl.) Hall & Clements , Ericameria pulchella (Gray) L.C. Anders. , Ericameria pulchella var. elatior (Standl.) L.C. Anders.

spathulatus L.C. Anders. Present in the Texas flora and known locally as: Douglas rabbitbrush (Texas Distribution by vegetation zone) Synonymy: Chrysothamnus viscidiflorus var. ludens Shinners , Ericameria spathulata (L.C. Anders.) L.C. Anders.

vaseyi (Gray) Greene Synonymy: Bigelovia vaseyi Gray , Ericameria vaseyi (Gray) L.C. Anders.

viscidiflorus (Hook.) Nutt.

ssp. axillaris (Keck) L.C. Anders. Synonymy: Chrysothamnus axillaris Keck , Ericameria viscidiflora ssp. axillaris (Keck) L.C. Anders.

ssp. lanceolatus (Nutt.) Hall & Clements Synonymy: Chrysothamnus viscidiflorus ssp. elegans (Greene) Hall & Clements , Chrysothamnus viscidiflorus var. elegans (Greene) Blake , Chrysothamnus viscidiflorus var. lanceolatus (Nutt.) Greene , Ericameria viscidiflora ssp. lanceolata (Nutt.) L.C. Anders.

ssp. planifolius L.C. Anders. Synonymy: Ericameria viscidiflora ssp. planifolia (L.C. Anders.) L.C. Anders.

ssp. puberulus (D.C. Eat.) Hall & Clements Synonymy: Chrysothamnus viscidiflorus var. puberulus (D.C. Eat.) Jepson , Ericameria viscidiflora ssp. puberula (D.C. Eaton) L.C. Anders.

ssp. viscidiflorus

var. stenophyllus (Gray) Hall Synonymy: Chrysothamnus viscidiflorus ssp. stenophyllus (Gray) Hall & Clements , Ericameria viscidiflora var. stenophylla (Gray) L.C. Anders.

var. viscidiflorus Synonymy: Chrysothamnus viscidiflorus ssp. latifolius (D.C. Eat.) Hall & Clements , Chrysothamnus viscidiflorus ssp. pumilus (Nutt.) Hall & Clements , Chrysothamnus viscidiflorus ssp. typicus Hall & Clements , Chrysothamnus viscidiflorus var. latifolius (D.C. Eat.) Greene , Chrysothamnus viscidiflorus var. pumilus (Nutt.) Jepson , Chrysothamnus viscidiflorus var. typicus (Hall & Clements) Cronq. , Ericameria viscidiflora (Hook.) L.C. Anders. , Ericameria viscidiflora var. latifolia (D.C. Eaton) L.C. Anders.

Cichorium L. - CHICORY AND ENDIVE

endivia L.

intybus L. Present in the Texas flora and known locally as: Common chicory, blue-sailors (Texas Distribution by vegetation zone)

Cirsium P. Mill. - THISTLE

altissimum (L.) Hill Present in the Texas flora and known locally as: Iowa thistle (Texas Distribution by vegetation zone) Synonymy: Carduus altissimus L. , Cirsium altissimum var. biltmoreanum Petrak

amblylepis Petrak

andersonii (Gray) Petrak

andrewsii (Gray) Jepson Synonymy: Cnicus amplifolius Greene

araneans Rydb. Synonymy: Carduus araneosus Osterhout

arcuum A. Nels.

aridum Dorn

arizonicum (Gray) Petrak

var. arizonicum Synonymy: Cnicus arizonicus Gray

var. nidulum (M.E. Jones) Welsh Synonymy: Cirsium nidulum (M.E. Jones) Petrak

arvense (L.) Scop. Synonymy: Carduus arvensis (L.) Robson , Cirsium arvense var. argenteum (Vest) Fiori , Cirsium arvense var. horridum Wimmer & Grab. , Cirsium arvense var. integrifolium Wimmer & Grab. , Cirsium arvense var. mite Wimmer & Grab. , Cirsium arvense var. vestitum Wimmer & Grab. , Cirsium incanum (Gmel.) Fisch. , Cirsium setosum (Willd.) Bess. ex Bieb. , Serratula arvensis L.

barnebyi Welsh & Neese

brevifolium Nutt. Synonymy: Cirsium palousense Piper

brevistylum Cronq.

calcareum (M.E. Jones) Woot. & Standl. Synonymy: Carduus pulchellus Greene , Carduus truncatus Greene , Cirsium bipinnatum (Eastw.) Rydb. , Cirsium calcareum var. bipinnatum (Eastw.) Welsh , Cirsium calcareum var. pulchellum (Greene) Welsh , Cirsium pulchellum (Greene) Woot. & Standl. , Cirsium pulchellum ssp. bipinnatum (Eastw.) Petrak , Cirsium pulchellum var. glabrescens Petrak , Cnicus calcareus M.E. Jones

X canalense Petrak

canescens Nutt. Synonymy: Carduus undulatus var. canescens (Nutt.) Porter , Cirsium nebraskense (Britt.) Lunell , Cirsium nelsonii (Pammel) Petrak , Cirsium plattense (Rydb.) Cockerell ex Daniels

canovirens (Rydb.) Petrak

canum (L.) All.

carolinianum (Walt.) Fern. & Schub. Present in the Texas flora and known locally as: Soft thistle (Texas Distribution by vegetation zone) Synonymy: Carduus carolinianus Walt. , Cirsium flaccidum Small

chellyense Moore & Frankton

chuskaense Moore & Frankton

ciliolatum (Henderson) J.T. Howell Synonymy: Cirsium botrys Petrak , Cirsium howellii Petrak

clavatum (M.E. Jones) Petrak

clokeyi Blake

congdonii Moore & Frankton

crassicaule (Greene) Jepson

X crassum Petrak

cymosum (Greene) J.T. Howell Synonymy: Cirsium triacanthum Petrak

discolor (Muhl. ex Willd.) Spreng. Synonymy: Carduus discolor (Muhl. ex Willd.) Nutt.

douglasii DC.

var. breweri (Petrak) Keil & C. Turner Synonymy: Cirsium breweri (Gray) Jepson , Cirsium breweri var. lanosissimum Petrak p.p. , Cirsium douglasii var. canescens (Petrak) J.T. Howell

var. douglasii Synonymy: Cirsium breweri var. wrangelii Petrak

drummondii Torr. & Gray Synonymy: Cirsium coccinatum Osterhout

eatonii (Gray) B.L. Robins. Synonymy: Cirsium eatonii var. harrisonii Welsh , Cirsium eriocephalum var. leiocephalum D.C. Eat. , Cirsium hookerianum var. eriocephalum (Gray) A. Nels. , Cirsium polyphyllum (Rydb.) Petrak , Cirsium tweedyi (Rydb.) Petrak

edule Nutt. Synonymy: Carduus macounii Greene , Cirsium macounii (Greene) Rydb.

engelmannii Rydb. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Cirsium altissimum var. filipendulum (Engelm.) Gray , Cirsium filipendulum Engelm. , Cirsium terraenigrae Shinners

X erosum (Rydb.) K. Schum. (pro sp.) [callilepis X scariosum]

flodmanii (Rydb.) Arthur Synonymy: Cirsium nebraskense var. discissum Lunell , Cirsium oblanceolatum (Rydb.) K. Schum.

foliosum (Hook.) DC. Synonymy: Cirsium foliosum var. minganense (Victorin) Boivin

fontinale (Greene) Jepson Listed by the U.S. FWS as endangered, the FWS local name is Fountain thistle and the FWS range is: U.S.A. (CA).

var. campylon (H.K. Sharsmith) Pilz ex Keil & C. Turner Synonymy: Cirsium campylon H.K. Sharsmith

var. fontinale

var. obispoense J.T. Howell Listed by the U.S. FWS as endangered, the FWS local name is Thistle, Chorro Creek bog and the FWS range is: U.S.A. (CA). Listed on December 15, 1994 (Volume 59 Federal Register 64623).

gilense Woot. & Standl.

grahamii Gray

griseum (Rydb.) K. Schum.

hallii (Gray) M.E. Jones

helenioides (L.) Hill Synonymy: Carduus helenioides L. , Cirsium heterophyllum (L.) Hill

hillii (Canby) Fern. Synonymy: Cirsium pumilum ssp. hillii (Canby) Moore & Frankton , Cirsium pumilum var. hillii (Canby) Boivin

hookerianum Nutt.

horridulum Michx. Present in the Texas flora and known locally as: Yellow thistle, bull thistle (Texas Distribution by vegetation zone) Synonymy: Carduus pinetorum Small , Carduus smallii (Britt.) Ahles , Carduus spinosissimus Walt. , Cirsium horridulum var. elliottii Torr. & Gray , Cirsium horridulum var. vittatum (Small) R.W. Long , Cirsium smallii Britt. , Cirsium spinosissimum auct. non (L.) Scop. , Cirsium vittatum Small

humboldtense Rydb. Synonymy: Carduus nevadensis Greene

hydrophilum (Greene) Jepson

var. hydrophilum Synonymy: Cirsium vaseyi var. hydrophilum (Greene) Petrak

var. vaseyi (Gray) J.T. Howell Synonymy: Cirsium montigenum Petrak , Cirsium vaseyi (Gray) Jepson , Cnicus breweri var. vaseyi Gray

inornatum Woot. & Standl.

X iowense (Pammel) Fern. (pro sp.) [altissimum X discolor]

kamtschaticum Ledeb. ex DC.

laterifolium (Osterhout) Petrak

lecontei Torr. & Gray Synonymy: Carduus lecontei (Torr. & Gray) Pollard

loncholepis Petrak

longistylum Moore & Frankton

mendocinum Petrak

mexicanum DC.

modestum (Osterhout) Cockerell

mohavense (Greene) Petrak

murdockii (Welsh) Cronq. Synonymy: Cirsium eatonii var. murdockii Welsh , Cirsium tweedyi auct. non (Rydb.) Petrak

muticum Michx. Present in the Texas flora and known locally as: Swamp thistle (Texas Distribution by vegetation zone) Synonymy: Carduus muticus (Michx.) Pers. , Cirsium bigelovii DC. , Cirsium muticum var. monticola Fern. , Cirsium muticum var. subpinnatifidum (Britt.) Fern.

navajoense Moore & Frankton

neomexicanum Gray

var. neomexicanum

var. utahense (Petrak) Welsh Synonymy: Carduus inamoenus Greene , Cirsium utahense Petrak , Cirsium wallowense M.E. Peck

nuttallii DC. Synonymy: Carduus nuttallii (DC.) Pollard

occidentale (Nutt.) Jepson

var. californicum (Gray) Keil & C. Turner Synonymy: Cirsium californicum Gray , Cirsium californicum ssp. pseudoreglense Petrak , Cirsium californicum var. bernardinum (Greene) Petrak

var. compactum Hoover

var. occidentale Synonymy: Cirsium coulteri Harvey & Gray

var. venustum (Greene) Jepson Synonymy: Cirsium proteanum J.T. Howell

ochrocentrum Gray Present in the Texas flora and known locally as: Yellowspine thistle (Texas Distribution by vegetation zone) Synonymy: Cnicus ochrocentrus (Gray) Gray

olivescens (Rydb.) Petrak

oreophilum (Rydb.) K. Schum.

osterhoutii (Rydb.) Petrak

ownbeyi Welsh

pallidum Woot. & Standl.

palustre (L.) Scop.

parryi (Gray) Petrak

ssp. mogollonicum C. Schaack & G. Goodwin

ssp. parryi Synonymy: Cnicus parryi Gray

pastoris J.T. Howell Synonymy: Cirsium candidissimum (Greene) A. Davids. & Moxley , Cirsium occidentale var. candidissimum (Greene) J.F. Macbr.

peckii Henderson

perplexans (Rydb.) Petrak

pitcheri (Torr. ex Eat.) Torr. & Gray Listed by the U.S. FWS as threatened - the FWS local name is Pitcher's thistle and the FWS range is: U.S.A. (IL, IN, MI, WI), Canada (Ont.).

praeteriens J.F. Macbr.

pulcherrimum (Rydb.) K. Schum.

pumilum (Nutt.) Spreng. Synonymy: Carduus pumilus Nutt. , Cirsium odoratum (Muhl. ex W. Bart.) Petrak

quercetorum (Gray) Jepson

var. quercetorum Synonymy: Cirsium quercetorum var. mendocinum Petrak

var. walkerianum (Petrak) Jepson Synonymy: Cirsium walkerianum Petrak

var. xerolepis Petrak

remotifolium (Hook.) DC.

ssp. oregonense Petrak Synonymy: Cirsium callilepis var. oregonense (Petrak) J.T. Howell , Cirsium centaureae (Rydb.) K. Schum.

ssp. pseudocarlinoides Petrak Synonymy: Cirsium callilepis var. pseudocarlinoides (Petrak) J.T. Howell

ssp. remotifolium Synonymy: Cirsium acanthodontum Blake , Cirsium callilepis (Greene) Jepson , Cirsium oreganum Piper , Cirsium remotifolium var. odontolepis Petrak , Cirsium remotifolium var. rivulare Jepson , Cirsium stenolepidum Nutt.

repandum Michx. Synonymy: Carduus repandus (Michx.) Pers.

rhothophilum Blake Synonymy: Cirsium maritimum (Elmer) Petrak

rothrockii (Gray) Petrak Synonymy: Cirsium diffusum (Eastw.) Rydb. , Cirsium pulchellum ssp. diffusum (Eastw.) Petrak

rusbyi (Greene) Petrak

rydbergii Petrak Synonymy: Cirsium lactucinum Rydb.

scabrum (Poir.) Bonnet & Barratte

scapanolepis Petrak Synonymy: Carduus spathulatus Osterhout , Cirsium spathulifolium Rydb.

scariosum Nutt.

var. scariosum Synonymy: Cirsium butleri (Rydb.) Petrak , Cirsium kelseyi (Rydb.) Petrak , Cirsium magnificum (A. Nels.) Petrak , Cirsium minganense Victorin , Cirsium lacerum (Rydb.) Petrak

var. thorneae Welsh

scopulorum (Greene) Cockerell ex Daniels Synonymy: Cirsium eriocephalum Gray , Cirsium hesperium (Eastw.) Petrak

subniveum Rydb. Synonymy: Cirsium davisii Cronq.

texanum Buckl. Present in the Texas flora and known locally as: Southern thistle (Texas Distribution by vegetation zone) Synonymy: Carduus austrinus Small , Cirsium texanum var. stenolepis Shinners

tioganum (Congd.) Petrak

var. coloradense (Rydb.) Dorn Synonymy: Carduus coloradensis Rydb. , Cirsium coloradense (Rydb.) Cockerell

var. tioganum Synonymy: Carduus americanus (Gray) Rydb. , Cirsium acaule var. americanum Gray , Cirsium acaulescens (Rydb.) K. Schum. , Cirsium americanum (Gray) K. Schum. , Cirsium coloradense ssp. acaulescens (Rydb.) Petrak , Cirsium coloradense ssp. longissimum (Heller) Petrak , Cirsium drummondii ssp. lanatum Petrak , Cirsium drummondii ssp. latisquamum Petrak , Cirsium drummondii ssp. vexans Petrak , Cirsium drummondii var. acaulescens (Rydb.) J.F. Macbr. , Cirsium drummondii var. oregonense Petrak , Cirsium quercetorum var. citrinum Petrak , Cnicus drummondii var. acaulescens Rydb. , Cnicus tioganus Congd.

turneri Warnock Present in the Texas flora and known locally as: Cliff thistle (Texas Distribution by vegetation zone)

undulatum (Nutt.) Spreng. Present in the Texas flora and known locally as: Wayleaf thistle (Texas Distribution by vegetation zone)

var. tracyi (Rydb.) Welsh Synonymy: Carduus tracyi Rydb. , Cirsium acuatum (Osterhout) Petrak , Cirsium floccosum (Rydb.) Petrak , Cirsium tracyi (Rydb.) Petrak

var. undulatum Synonymy: Carduus helleri Small , Carduus undulatus Nutt. , Cirsium helleri (Small) Cory , Cirsium megacephalum (Gray) Cockerell , Cirsium ochrocentrum var. helleri (Small) Petrak , Cirsium undulatum var. megacephalum (Gray) Fern. , Cnicus undulatus var. megacephalus Gray

validus Greene

X vancouverense Moore & Frankton [brevistylum X edule]

vernale (Osterhout) Cockerell

vinaceum Woot. & Standl. Listed by the U.S. FWS as threatened - the FWS local name is Sacramento Mountains thistle and the FWS range is: U.S.A. (NM).

virginense Welsh

virginianum (L.) Michx. Synonymy: Carduus virginianus L. , Cirsium revolutum (Small) Petrak

vulgare (Savi) Ten. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Carduus lanceolatus L. , Carduus vulgaris Savi , Cirsium lanceolatum (L.) Scop., non Hill , Cirsium lanceolatum var. hypoleucum DC.

wheeleri (Gray) Petrak Synonymy: Cirsium blumeri Petrak , Cirsium perennans (Greene) Woot. & Standl. , Cnicus wheeleri Gray

wrightii Gray

Clappia Gray - CLAPDAISY

suaedifolia Gray Present in the Texas flora and known locally as: Fleshyleaf clappia (Texas Distribution by vegetation zone)

Clibadium L. - JACKASS-BREADNUT

erosum (Sw.) DC.

Cnicus L. - BLESSED-THISTLE

benedictus L. Synonymy: Centaurea benedicta (L.) L. , Cirsium pugnax Sommier & Levier

Columbiadoria Nesom

hallii (Gray) Nesom Synonymy: Haplopappus hallii Gray , Hesperodoria hallii (Gray) Greene

Conyza Less. - HORSEWEED

apurensis Kunth Synonymy: Conyza subspathulata Cronq. , Erigeron apurensis (Kunth) Griseb. , Erigeron chinensis Jacq. , Erigeron spathulatus Vahl , Leptilon chinense (Jacq.) Britt.

bonariensis (L.) Cronq. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone)

var. bonariensis Synonymy: Erigeron bonariensis L. , Erigeron linifolius Willd. , Leptilon bonariense (L.) Small , Leptilon linifolium (Willd.) Small

var. leiotheca (Blake) Cuatrec. Synonymy: Conyza bilboana Remy , Conyza floribunda Kunth , Erigeron bilboanus (Remy) Cabrera , Erigeron floribundus (Kunth) Schultz-Bip.

canadensis (L.) Cronq.

var. canadensis Present in the Texas flora and known locally as: Horsetail conyza, marshtail, Canada feabane (Texas Distribution by vegetation zone) Synonymy: Erigeron canadensis L. , Leptilon canadense (L.) Britt.

var. glabrata (Gray) Cronq. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Erigeron canadensis var. glabratus Gray

var. pusilla (Nutt.) Cronq. Present in the Texas flora, local name unknown. (Texas Distribution by vegetation zone) Synonymy: Conyza parva Cronq. , Erigeron canadensis var. pusillus (Nutt.) Boivin, non Ahles , Erigeron pusillus Nutt. , Leptilon pusillum (Nutt.) Britt.