Texas Vascular Plant Checklist:  Amaranthaceae
The Pigweed Family
(Magnoliophyta, Magnoliopsida, Caryophyllidae)

 Achyranthes
   aspera var. pubescens (Moq.) Townsend (chaff flower)

 Alternanthera
   bettzichiana (Regel) Voss (calico plant)
   caracasana Kunth (mat chaff flower, verdolaca depuerco)
   flavogrisea Urban (hairy joyweed)
   paronichyoides var. paronichyoides (smooth chaff flower)
   philoxeroides (Mart.) Griseb. (alligator-weed)
   pungens Kunth (khakiweed)
   sessilis (L.) R. Br. ex DC. (sessile joyweed)

 Amaranthus
   acanthochiton Sauer (green stripe)
   albus L. (tumbleweed amaranth, prostrate pigweed, white amaranth, tumbleweed)
   arenicola I.M. Johnston (torrey amaranth, sandhill amaranth)
   australis (Gray) Sauer (southern amaranth)
   bigelovii Uline & Bray (bigelow's amaranth)
   blitoides S. Wats. (mat amaranth)
   blitum L. (green amaranth)
   californicus (Moq.) S. Wats. (california amaranth)
   crassipes Schlecht. (spreading amaranth)
   cruentus L. (purple amaranth, caterpillar, amarantorojo)
   fimbriatus (Torr.) Benth. ex S. Wats. (fringed amaranth)
   greggii S. Wats. (gregg amaranth)
   hybridus L. (slim amaranth, spleen amaranth, green amaranth)
   hypochondriacus L. (princess feather)
   obcordatus (Gray) Standl. (trans pecos amaranth)
   palmeri S. Wats. (palmer amaranth, carelessweed, redroot)
   polygonoides L. (tropical amaranth)
   powellii S. Wats. (powell amaranth)
   retroflexus L. (redroot amaranth, redroot pigweed, green amaranth, rough pigweed, quelite)
   rudis Sauer (tall amaranth)
   scleropoides Uline & Bray (bonebrack amaranth)
   spinosus L. (spiny amaranth, thorny amaranth, spiny pigweed, quelite espinosa)
   viridis L. (slender amaranth)
   wrightii S. Wats. (wright amaranth)

 Blutaparon
   vermiculare (L.) Mears (silverhead)

 Celosia
   argentea L. (cockscomb, cresta de gallo)
   nitida Vahl (cockscomb, albahaca)
   palmeri S. Wats. (palmer's cock's comb)

 Froelichia
   arizonica Thornb. ex Standl. (arizona snakecotton)
   drummondii Moq. (drummond snakecotton)
   floridana var. campestris (Small) Fernald
   floridana var. floridana (florida snakecotton)
   gracilis (Hook.) Moq. (slender snakecotton)
   interrupta (L.) Moq. (texas snakecotton)

 Gomphrena
   caespitosa Torr. (twoleaf globe amaranth)
   globosa L. (common globe amaranth)
   haageana Klotzsch (haage globe amaranth)
   nealleyi Coult. & Fisher (nealley globe amaranth)
   nitida Rothrock (pearly globe amaranth)
   serrata L. (coastal globe amaranth, prostrate globe amaranth)

 Gossypianthus
   lanuginosus var. lanuginosus (woolly cottonflower)
   lanuginosus var. tenuiflorus (Hook.) Mears ex Henrickson (lanceleaf cottonflower)

 Guilleminea
   densa var. aggregata Uline & Bray
   densa var. densa

 Iresine
   diffusa Humb. & Bonpl. ex Willd. (jubasbush)
   heterophylla Standl. (stanley bloodleaf)
   leptoclada (Hook. f.) Henrickson & Sundberg (texas shrub)
   palmeri (S. Wats.) Standl. (palmer bloodleaf)
   rhizomatosa Standl. (rootstock bloodleaf)

 Tidestromia
   carnosa (Steyermark) I.M. Johnston (fleshy honeysweet)
   gemmata I.M. Johnston (trans pecos honeysweet)
   lanuginosa (Nutt.) Standl. (woolly tidestromia, espanta vaqueros)
   oblongifolia (S. Wats.) Standl. (arizona honeysweet)
   suffruticosa (Torr.) Standl. (shrubby tidestromia)