Texas Vascular Plant Checklist:  Acanthaceae
The Acanthus Family
(Magnoliophyta, Magnoliopsida, Asteridae)

 Anisacanthus
   linearis (Hagen) Henrickson & Lott (dwarf anisacanth)
   puberulus (Torr.) Henrickson & Lott (dwarf desert honeysuckle)
   quadrifidus var. wrightii (Torr.) Henrickson (wrights anisacanth)

 Carlowrightia
   arizonica Gray (arizona wrightwort)
   linearifolia (Torr.) Gray (heath carlowrightia)
   mexicana Henrickson & Daniel (mexican wrightwort)
   parviflora (Buckl.) Wasshausen (woody dianthera)
   parvifolia Brandeg. (little leaf wrightwort)
   serpyllifolia Gray (trans pecos wrightwort)
   texana Henrickson & Daniel (texas wrightwort)
   torreyana Wasshausen (torrey's wrightwort)

 Dicliptera
   brachiata (Pursh) Spreng. (branched foldwing)
   sexangularis (L.) Juss. (six angle foldwing)

 Dyschoriste
   crenulata Kobuski (wavyleaf dyschoriste)
   decumbens (Gray) Kuntze (spreading dyschoriste)
   linearis (Torr. & Gray) Kuntze (narrowleaf dyschoriste)

 Elytraria
   bromoides Oerst. (wheatspike scalystem, coast scalystem)
   imbricata (Vahl) Pers. (purple scalystem, arizona scalystem)

 Hygrophila
   lacustris (Schlecht. & Cham.) Nees (lake acanthus)
   polysperma (Roxb.) T. Anders. (indian swampweed)

 Justicia
   americana (L.) Vahl (american waterwillow)
   ovata var. lanceolata (Chapman) R.W. Long (lance-leaved waterwillow)
   runyonii Small (runyon justicia)
   warnockii B.L. Turner (warnock's water willow)
   wrightii Gray (wright justicia)

 Nomaphila
   stricta (Vahl) Nees (stiff bear grass)

 Ruellia
   caerulea Morong (linear leaf wild petunia)
   caroliniensis var. caroliniensis subsp. caroliniensis (small flower ruellia)
   caroliniensis var. serrulata subsp. caroliniensis Tharp & Barkl.
   caroliniensis var. cinerascens subsp. ciliosa (Fernald) Kartesz & Gandhi
   corzoi Tharp & Barkl. (corzo's wild petunia)
   davisiorum Tharp & Barkl. (drummond ruellia)
   drummondiana (Nees) Gray (drummond's wild petunia)
   drushelii var. drushelii
   drushelii var. macrocarpa Tharp & Barkl.
   humilis Nutt. (low ruellia)
   malacosperma Greenm. (softseed ruellia)
   metziae Tharp (metz's wild petunia)
   nudiflora var. nudiflora (violet ruellia)
   nudiflora var. runyonii (Tharp & Barkl.) B.L. Turner
   occidentalis (Gray) Tharp & Barkl. (western wild petunia)
   parryi Gray (perry ruellia)
   pedunculata subsp. pedunculata (stalk ruellia)
   pedunculata subsp. pinetorum (Fernald) R.W. Long
   strepens L. (limestone ruellia, smooth ruellia)
   yucatana (Leonard) Tharp & Barkl. (yucatan wild petunia)

 Siphonoglossa
   greggii Greenm. & C.H. Thompson (gregg tubetongue)
   longiflora (Torr.) Gray (long flower tubetongue)
   pilosella (Nees) Torr. (hairy tubetongue)

 Stenandrium
   barbatum Torr. & Gray (shaggy stenardrium)
   dulce var. dulce (sweet stenandrium)

 Tetramerium
   nervosum Nees (hairy fournwort)

 Thunbergia
   alata Bojer ex Sims (black-eyed susan, blcke-eyed clock-vine)

 Yeatesia
   platystegia (Torr.) Hilsenb. (montell bractspike)
   viridiflora (Nees) Small (yellow bractspike)