Texas Vascular Plant Checklist:  Asclepiadaceae
The Milkweed Family
(Magnoliophyta, Magnoliopsida, Asteridae)

 Asclepias
   amplexicaulis Sm. (bluntleaf milkweed)
   arenaria Torr. (sand milkweed)
   asperula subsp. asperula
   asperula subsp. capricornu (Woods.) Woods. (trailing milkweed)
   brachystephana Engelm. ex Torr. (shortcrown milkweed)
   curassavica L. (veintiunilla)
   emoryi (Greene) Vail (emory milkweed)
   engelmanniana Woods. (engelmann milkweed)
   glaucescens Kunth (nodding milkweed)
   incarnata subsp. incarnata (swamp milkweed)
   incarnata subsp. pulchra (Ehrh. ex Willd.) Woods.
   involucrata Engelm. ex Torr. (dwarf milkweed)
   lanceolata Walt. (lanceleaf milkweed)
   latifolia (Torr.) Raf. (broadleaf milkweed)
   linearis Scheele (slim milkweed)
   longifolia Michx. (longleaf milkweed)
   macrotis Torr. (longhood milkweed)
   nummularia Torr. (roundleaf milkweed, yerba de cuervo)
   obovata Ell. (pineland milkweed)
   oenotheroides Cham. & Schlecht. (hierba de zizotes)
   perennis Walt. (shore milkweed, thinleaf milkweed)
   prostrata Blackwell (prostrate milkweed)
   pumila (Gray) Vail (plains milkweed, low milkweed)
   purpurascens L. (purple milkweed)
   quinquedentata Gray (slimpod milkweed)
   rubra L. (red milkweed)
   scaposa Vail (bear mountain milkweed)
   speciosa Torr. (showy milkweed)
   sperryi Woods. (sperry milkweed)
   stenophylla Gray (slimleaf milkweed, narrowleaf milkweed)
   subverticillata (Gray) Vail (poison milkweed, horsetail milkweed)
   syriaca L. (common milkweed)
   texana Heller (texas milkweed)
   tomentosa Ell. (tuba milkweed)
   tuberosa subsp. interior Woods.
   uncialis subsp. uncialis
   variegata L. (white-flowered milkweed)
   verticillata L. (whorled milkweed, eastern whorled milkweed)
   viridiflora Raf. (green antelopehorn)
   viridis Walt. (antelopehorn)

 Cynanchum
   angustifolium Pers. (marsh swallow-wort)
   barbigerum (Scheele) Shinners (bearded swallow-wort, thicket threadvine)
   laeve (Michx.) Pers. (smooth swallow-wort, smooth anglepod, bluevine, sandvine)
   maccartii Shinners (maccart's swallow wort)
   pringlei (Gray) Henrickson (pringle's swallow wort)
   racemosum var. unifarium (Scheele) E. Sundell

 Funastrum
   clausum (Jacq.) Schlechter (white twinevine)
   crispum (Benth.) Schlechter (wavy leaf twinevine)
   cynanchoides subsp. cynanchoides
   cynanchoides subsp. heterophyllum (Engelm. ex Torr.) Kartesz
   torreyi (Gray) Schlechter (soft twinevine)

 Matelea
   biflora (Raf.) Woods. (twoflower milkvine)
   brevicoronata (B.L. Robins.) Woods. (short crown milkvine)
   carolinensis (Jacq.) Woods. (maroon carolina milkvine)
   cynanchoides (Engelm.) Woods. (prairie milkvine)
   decipiens (Alexander) Woods. (oldfield milkvine)
   edwardsensis Correll (plateau milkvine)
   gonocarpos (Walt.) Shinners (angular fruit milkvine)
   parviflora (Torr.) Woods. (littleleaf milkvine)
   parvifolia (Torr.) Woods. (spearleaf)
   producta (Torr.) Woods. (texas milkvine)
   radiata Correll (falfurrias milkvine)
   reticulata (Engelm. ex Gray) Woods. (netted milkvine)
   sagittifolia (Gray) Woods. (arrowleaf milkvine)
   texensis Correll (trans pecos milkvine)
   woodsonii Shinners (woodson's milkvine)

 Periploca
   graeca L. (silkvine)