The Vascular Flora of Madison County, Texas


Browsing the flora by family:

A-B    C-H    I-O    P-Q    R-Z


County Abundance :  R= rare      I= infrequently encountered     F= frequently encountered    C= common
blank= no data, past collectors

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Family Division Genus Specific epithet Common name Abundance var./  ssp. Sub-specific tax. division
Papaveraceae Magnoliopsida Argemone albiflora White Prickly Poppy I ssp. texana
Papaveraceae Magnoliopsida Argemone polyanthemos White Prickly Poppy I

Passifloraceae Magnoliopsida Passiflora incarnata Maypop F

Passifloraceae Magnoliopsida Passiflora lutea Yellow Passionflower F

Phytolaccaceae Magnoliopsida Phytolacca americana Pokeweed I

Phytolaccaceae Magnoliopsida Rivina humilis Rougeplant R

Pinaceae Pinophyta Pinus echinata Shortleaf Pine R

Pinaceae Pinophyta Pinus taeda Loblolly Pine I

Plantaginaceae Magnoliopsida Plantago aristata Bottlebrush Plantain C

Plantaginaceae Magnoliopsida Plantago heterophylla Simplespike Plantain I

Plantaginaceae Magnoliopsida Plantago hookeriana Hooker Plantain I

Plantaginaceae Magnoliopsida Plantago patagonica Bristlebract Plantain I

Plantaginaceae Magnoliopsida Plantago rhodosperma Redseed Plantain F

Plantaginaceae Magnoliopsida Plantago virginica Paleseed Plantain C

Plantaginaceae Magnoliopsida Plantago wrightiana Wright Plantain F

Platanaceae Magnoliopsida Platanus occidentalis American Sycamore I

Poaceae Liliopsida Agrostis elliotiana Elliot Bentgrass I

Poaceae Liliopsida Agrostis hiemalis Winter Bentgrass F

Poaceae Liliopsida Aira caryophylla Hairgrass I

Poaceae Liliopsida Alopecurus carolinianus Carolina Foxtail F

Poaceae Liliopsida Andropogon glomeratus Bushy Bluestem I

Poaceae Liliopsida Andropogon ternarius Splitbeard Bluestem I

Poaceae Liliopsida Andropogon virginicus Broomsedge Bluestem I

Poaceae Liliopsida Aristida desmantha Curly Threeawn I

Poaceae Liliopsida Aristida longespica Plains Threeawn F var. geniculata
Poaceae Liliopsida Aristida longespica Slimspike Threeawn F var. longespica
Poaceae Liliopsida Aristida oligantha Oldfield Threeawn F

Poaceae Liliopsida Arundinaria gigantea Giant Cane I

Poaceae Liliopsida Arundo donax Giant Reed I

Poaceae Liliopsida Avena fatua Wild Oats F var. fatua
Poaceae Liliopsida Avena fatua Common Oats F var. sativa
Poaceae Liliopsida Bothriochloa ischaemum King Ranch Bluestem F var. songarica
Poaceae Liliopsida Bothriochloa laguriodes Silver Bluestem I ssp. torreyana
Poaceae Liliopsida Bothriochloa longipaniculata Longspike Silver Bluestem I

Poaceae Liliopsida Bouteloua curtipendula Sideoats Grama R var. curtipendula
Poaceae Liliopsida Briza minor Little Quaking Grass F

Poaceae Liliopsida Bromus catharticus Rescuegrass F

Poaceae Liliopsida Bromus japonicus Japanese Brome F

Poaceae Liliopsida Bromus pubescens Brome -

Poaceae Liliopsida Bromus secalinus Rye Brome F

Poaceae Liliopsida Buchloe dactyloides Buffalograss I

Poaceae Liliopsida Cenchrus incertus Common Sandbur I

Poaceae Liliopsida Cenchrus spinifex Sandbur F

Poaceae Liliopsida Chasmanthium latifolium Broadleaf Woodoats F

Poaceae Liliopsida Chasmanthium laxum Woodoats F

Poaceae Liliopsida Chasmanthium sessiliflorum Narrowleaf Woodoats F

Poaceae Liliopsida Chloris canterai Windmillgrass R

Poaceae Liliopsida Chloris verticillata Tumble Windmillgrass R

Poaceae Liliopsida Chloris virgata Showy Windmillgrass I

Poaceae Liliopsida Chloris x subdolichostachya Shortspike Windmillgrass I

Poaceae Liliopsida Cynodon dactylon Bermuda Grass C

Poaceae Liliopsida Dactyloctenium aegyptium Durban Crowfootgrass I

Poaceae Liliopsida Dichanthelium aciculare Rosettegrass I

Poaceae Liliopsida Dichanthelium aciculare Rosettegrass I var. aciculare
Poaceae Liliopsida Dichanthelium acuminatum Woolly Rosettegrass C var. acuminatum
Poaceae Liliopsida Dichanthelium acuminatum Lindheimer Rosettegrass C var. lindheimeri
Poaceae Liliopsida Dichanthelium clandestinum Deertongue Rosettegrass R

Poaceae Liliopsida Dichanthelium commutatum Variable Rosettegrass I

Poaceae Liliopsida Dichanthelium dichotomum Rosettegrass I var. dichotomum
Poaceae Liliopsida Dichanthelium oligosanthes Rosettegrass F var. oligosanthes
Poaceae Liliopsida Dichanthelium oligosanthes Scribners Rosettegrass F var. scribnerianum
Poaceae Liliopsida Dichanthelium ravenelii Rosettegrass R

Poaceae Liliopsida Dichanthelium scoparium Velvet Rosettegrass C

Poaceae Liliopsida Dichanthelium sphaerocarpon Roundseed Rosettegrass F var. sphaerocarpon
Poaceae Liliopsida Digitaria cognata Fall Witchgrass I ssp. cognata
Poaceae Liliopsida Digitaria sanguinalis Hairy Crabgrass F

Poaceae Liliopsida Digitaria villosa Shaggy Crabgrass I

Poaceae Liliopsida Digitaria violascens Violet Crabgrass -

Poaceae Liliopsida Echinochloa colonum Junglerice I

Poaceae Liliopsida Echinochloa crusgallii Barnyard Grass F var. crusgallii
Poaceae Liliopsida Echinochloa muricata Barnyard Grass -

Poaceae Liliopsida Echinochloa walteri Barnyard Grass I

Poaceae Liliopsida Eleusine indica Goosegrass I

Poaceae Liliopsida Elymus canadensis Canada Wildrye F var. canadensis
Poaceae Liliopsida Elymus virginicus Virginia Wildrye F

Poaceae Liliopsida Eragrostis curtipedicillata Gummy Lovegrass I

Poaceae Liliopsida Eragrostis hirsuta Bigtop Lovegrass I

Poaceae Liliopsida Eragrostis hypnoides Teal Lovegrass I

Poaceae Liliopsida Eragrostis intermedia Plains Lovegrass I

Poaceae Liliopsida Eragrostis intermedia Plains Lovegrass I var. intermedia
Poaceae Liliopsida Eragrostis reptans Creeping Lovegrass I

Poaceae Liliopsida Eragrostis secundiflora Red Lovegrass C

Poaceae Liliopsida Eragrostis secundiflora Red Lovegrass C ssp. oxylepis
Poaceae Liliopsida Eragrostis spectabilis Purple Lovegrass F

Poaceae Liliopsida Eriochloa sericea Texas Cupgrass -

Poaceae Liliopsida Eustachys retusa Windmill Grass I

Poaceae Liliopsida Festuca obtusa Nodding Fescue I

Poaceae Liliopsida Glyceria septentrionalis Eastern Mannagrass R var. septentrionalis
Poaceae Liliopsida Gymnopogon ambiguus Bearded Skeletongrass -

Poaceae Liliopsida Hordeum leporinum Hare Barley I

Poaceae Liliopsida Hordeum pusillum Little Barley I

Poaceae Liliopsida Leersia lenticularis Catchfly Grass I

Poaceae Liliopsida Leersia virginica Whitegrass I

Poaceae Liliopsida Lolium perenne Perennial Ryegrass C

Poaceae Liliopsida Melica mutica Twoflower Melic F

Poaceae Liliopsida Muhlenbergia capillaris Hairyawn Muhly I

Poaceae Liliopsida Muhlenbergia schreiberi Nimblewill -

Poaceae Liliopsida Nasella leucotricha Texas Wintergrass F

Poaceae Liliopsida Oplismenus hirtellus Basketgrass I

Poaceae Liliopsida Panicum anceps Beaked Panicum I

Poaceae Liliopsida Panicum brachyanthum Pimple Panicum I

Poaceae Liliopsida Panicum dichotomiflorum Fall Panicum F

Poaceae Liliopsida Panicum diffusum Spreading Panicum -

Poaceae Liliopsida Panicum gymnocarpon Savannah Panicum I

Poaceae Liliopsida Panicum hallii Halls Panicum - var. hallii
Poaceae Liliopsida Panicum hians Gaping Panicum C

Poaceae Liliopsida Panicum rigidulum Redtop Panicum C

Poaceae Liliopsida Panicum virgatum Switchgrass I

Poaceae Liliopsida Paspalidium geminatum Paspalidium I var. geminatum
Poaceae Liliopsida Paspalum dilatatum Dallisgrass F

Poaceae Liliopsida Paspalum floridanum Florida Paspalum F var. glabratum
Poaceae Liliopsida Paspalum fluitans Water Paspalum I

Poaceae Liliopsida Paspalum laeve Field Paspalum -

Poaceae Liliopsida Paspalum notatum Bahiagrass F var. notatum
Poaceae Liliopsida Paspalum notatum Bahiagrass F var. saurae
Poaceae Liliopsida Paspalum plicatulum Brownseed Paspalum C

Poaceae Liliopsida Paspalum pubiflorum Hairyseed Paspalum -

Poaceae Liliopsida Paspalum setaceum Thin Paspalum I var. setaceum
Poaceae Liliopsida Paspalum setaceum Thin Paspalum I var. stramineum
Poaceae Liliopsida Paspalum urvillei Vaseygrass I

Poaceae Liliopsida Phalaris caroliniana Carolina Canarygrass F

Poaceae Liliopsida Piptochaetium avenaceum Blackseed Needlegrass F

Poaceae Liliopsida Poa annua Annual Bluegrass I

Poaceae Liliopsida Poa autumnalis Autumn Bluegrass I

Poaceae Liliopsida Poa chapmaniana Chapman Bluegrass I

Poaceae Liliopsida Polypogon monspeliensis Rabbitfoot Polypogon R

Poaceae Liliopsida Saccharum baldwinii - R

Poaceae Liliopsida Schizachyrium scoparium Little Bluestem F

Poaceae Liliopsida Schizachyrium scoparium Little Bluestem F var. divergens
Poaceae Liliopsida Schizachyrium scoparium Little Bluestem F var. scoparium
Poaceae Liliopsida Secale cereale Rye I

Poaceae Liliopsida Setaria parviflora Bristlegrass C

Poaceae Liliopsida Sorghastrum nutans Yellow Indiangrass I

Poaceae Liliopsida Sorghum halapense Johnsongrass C

Poaceae Liliopsida Sphenopholis interrupta Wedgescale I

Poaceae Liliopsida Sphenopholis obtusata Wedgescale F var. major
Poaceae Liliopsida Sphenopholis obtusata Prairie Wedgescale F var. obtusata
Poaceae Liliopsida Sporobolus compositus Dropseed I var. macer
Poaceae Liliopsida Sporobolus coromandelianus Dropseed I

Poaceae Liliopsida Sporobolus cryptandrus Sand Dropseed I

Poaceae Liliopsida Sporobolus indicus Smutgrass F

Poaceae Liliopsida Stenotaphrum secundatum St. Augustine Grass I

Poaceae Liliopsida Tridens flavus Chapman Tridens F var. chapmanii
Poaceae Liliopsida Tridens flavus Purpletop F var. flavus
Poaceae Liliopsida Tridens strictus Longspike Tridens F

Poaceae Liliopsida Tripsacum dactyloides Eastern Gamagrass I

Poaceae Liliopsida Triticum aestivum Wheat I

Poaceae Liliopsida Urochloa platyphylla Broadleaved Signalgrass F

Poaceae Liliopsida Urochloa texana Texas Signalgrass F

Poaceae Liliopsida Vulpia myuros Rattail Sixweeks Grass I var. myuros
Poaceae Liliopsida Vulpia octoflora Common Sixweeks Grass C var. octoflora
Poaceae Liliopsida Vulpia sciurea Squirrel Sixweeks Grass I

Poaceae Liliopsida Zea mays Corn I

Poaceae Liliopsida Zizaniopsis miliacea Southern Wildrice I

Polemoniaceae Magnoliopsida Ipomopsis rubra Standing Cypress R

Polemoniaceae Magnoliopsida Phlox cuspidata Pointed Phlox C

Polemoniaceae Magnoliopsida Phlox cuspidata Pointed Phlox C var. cuspidata
Polemoniaceae Magnoliopsida Phlox drummondii Drummond Phlox I var. peregrina
Polemoniaceae Magnoliopsida Phlox pilosa Downy Phlox R

Polygalaceae Magnoliopsida Polygala incarnata Pink Milkwort R

Polygalaceae Magnoliopsida Polygala polygama Bitter Milkwort I

Polygalaceae Magnoliopsida Polygala verticillata Whorled Milkwort I

Polygonaceae Magnoliopsida Brunnichia ovata Buckwheat Vine I

Polygonaceae Magnoliopsida Eriogonum longifolium Longleaf Wild Buckwheat I

Polygonaceae Magnoliopsida Polygonum hydropiperoides Swamp Smartweed C

Polygonaceae Magnoliopsida Polygonum lapathifolium Curltop Smartweed I

Polygonaceae Magnoliopsida Polygonum pensylvanicum Pennsylvania Smartweed F

Polygonaceae Magnoliopsida Polygonum persicaria Lady's Thumb I

Polygonaceae Magnoliopsida Polygonum punctatum Water Smartweed C

Polygonaceae Magnoliopsida Polygonum ramosissimum Bushy Knotweed I

Polygonaceae Magnoliopsida Polygonum setaceum Smartweed I

Polygonaceae Magnoliopsida Rumex chrysocarpus Pale Dock I

Polygonaceae Magnoliopsida Rumex crispus Curly Dock F

Polygonaceae Magnoliopsida Rumex hastatulus Heart Sorrel C

Polygonaceae Magnoliopsida Rumex pulcher Fiddle Dock F

Polygonaceae Magnoliopsida Rumex verticillatus Swamp Dock I

Polypodiaceae Pteridophyta Pleopeltis polypodioides Resurrection Fern F ssp. michauxiana
Pontederiaceae Liliopsida Pontederia cordata Pickerelweed R var. lanceolata
Portulacaceae Magnoliopsida Claytonia virginica Spring Beauty I

Portulacaceae Magnoliopsida Portulaca oleracea Common Purslane I

Portulacaceae Magnoliopsida Portulaca pilosa Chisme I

Portulacaceae Magnoliopsida Portulaca umbraticola Wingpod Portulaca I

Portulacaceae Magnoliopsida Talinum parviflorum Prairie Flameflower R

Potamogetonaceae Liliopsida Eichhornia crassipes Water Hyacinth -

Potamogetonaceae Liliopsida Eichhornia crassipes Water Hyacinth -

Potamogetonaceae Liliopsida Potamogeton diversifolius Waterthread Pondweed I

Potamogetonaceae Liliopsida Potamogeton diversifolius Waterthread Pondweed I var. diversifolius
Primulaceae Magnoliopsida Anagallis arvensis Scarlet Pimpernel C

Primulaceae Magnoliopsida Centunculus minimus Chaffweed I

Primulaceae Magnoliopsida Samolus parviflorus Thinleaf Brookweed R