Texas Vascular Plant Checklist:  Orchidaceae
The Orchid Family
(Magnoliophyta, Liliopsida, Liliidae)

 Calopogon
   barbatus (Walt.) Ames (bearded grasspink)
   oklahomensis D.H. Goldman (oklahoma grass pink)
   tuberosus var. tuberosus (grasspink)

 Cleistes
   bifaria (Fernald) Catling & Gregg (small rosebud orchid)

 Corallorhiza
   maculata var. occidentalis (Lindl.) Ames
   odontorhiza var. odontorhiza
   striata var. vreelandii (Rydb.) L.O. Williams
   wisteriana Conrad (spring coralroot)

 Cypripedium
   kentuckiense C.F. Reed (southern lady's slipper)

 Deiregyne
   confusa Garay (rimrock ladies' braids)

 Dichromanthus
   cinnabarinus (Llave & Lex.) Garay (scarlet mock ladies' tresses)

 Epipactis
   gigantea Dougl. ex Hook. (stream eepipactis, stream orchis, giant helleborine)

 Habenaria
   quinqueseta (Michx.) Eat. (pine hebenaria, long-horned habenaria)
   repens Nutt. (nuttall habenaria, creeping orchis, water spider orchid)

 Hexalectris
   grandiflora (A. Rich. & Gal.) L.O. Williams (large-flower hexalectris, greenman's hexalectris)
   nitida L.O. Williams (shinning hexalectris)
   revoluta Correll (chisos mountain crested coralroot)
   spicata var. arizonica (S. Wats.) Catling & Engel (crested coralroot)
   spicata var. spicata
   warnockii Ames & Correll (texas purplespike)

 Isotria
   verticillata Raf. (whorled isotria, whorled pogonia)

 Listera
   australis Lindl. (southern twayblade)

 Malaxis
   porphyrea (Ridley) Kuntze (cochise adder's mouth orchid)
   soulei L.O. Williams (chiricahua adder's mouth orchid)
   unifolia Michx. (oneleaf malaxis, green adder's mouth, oneleaf adder's mouth)
   wendtii Salazar (wendt's adder's mouth orchid)

 Platanthera
   blephariglottis var. conspicua (Nash) Luer (white fingerorchid)
   × canbyi (Ames) Luer [blephariglottis × cristata]
   chapmanii (Small) Luer (chapman fingerorchid)
   ciliaris (L.) Lindl. (yellow fingerorchid)
   clavellata (Michx.) Luer (small woodorchid, green woodland orchis)
   cristata (Michx.) Lindl. (crested fingerorchid)
   flava var. flava (tubercled fingerorchid, pale green orchis, southern reinorchid)
   integra (Nutt.) Gray ex Beck (yellow fringeless orchid)
   integrilabia (Correll) Luer (white fringeless orchid)
   lacera (Michx.) G. Don (ragged fringe orchid)
   nivea (Nutt.) Luer (snowy fingerorchid, southern small white orchis, bog-torch, showy orchis)

 Pogonia
   ophioglossoides (L.) Ker-Gawl. (rose pogonia)

 Ponthieva
   racemosa (Walt.) C. Mohr (shadowwitch)

 Schiedeella
   fauci-sanguinea (D. Dod) Burns-Balogh (indian braids)

 Spiranthes
   brevilabris Lindl. (texas ladies' tresses)
   cernua (L.) L.C. Rich. (nodding ladies' tresses, common ladies' tresses, fragrant ladies' tresses)
   floridana (Wherry) Cory (florida ladies' tresses)
   lacera var. gracilis (Bigelow) Luer (slender ladies' tresses)
   laciniata (Small) Ames (fringelip ladies' tresses, lacelip sprial orchid)
   longilabris Lindl. (giant sprialorchid)
   magnicamporum Sheviak (great plains ladies' tresses)
   odorata (Nutt.) Lindl. (marsh ladies' tresses)
   ovalis var. erostellata Catling (october ladies' tresses, oval ladies' tresses)
   ovalis var. ovalis
   parksii Correll (navasota ladies' tresses, parks ladies' tresses)
   praecox (Walt.) S. Wats. (grassleaved ladies' tresses)
   tuberosa Raf. (grays ladies' tresses)
   vernalis Engelm. & Gray (upland ladies' tresses, spring ladies' tresses)

 Stenorrhynchos
   michuacanus (Llave & Lex.) Schlechter (michuacan lady orchid)

 Tipularia
   discolor (Pursh) Nutt. (cranefly orchid)

 Triphora
   trianthophora (Sw.) Rydb. (threebirds orchid, nodding pogonia, brooding pogonia)

 Zeuxine
   strateumatica (L.) Schlechter (soldier's orchid)