Families, genera and species in Texas Source: USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 24 June 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

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Select a Family	Select a Genus	Species
Nyctaginaceae Malvaceae Fabaceae Euphorbiaceae Cactaceae Asteraceae Aceraceae Poaceae Amaranthaceae Acoraceae Pteridaceae Rhamnaceae Ranunculaceae Hippocastanaceae Scrophulariaceae Lamiaceae Agavaceae Phytolaccaceae Rosaceae Caryophyllaceae Simaroubaceae Apiaceae Liliaceae Alismataceae Chenopodiaceae Betulaceae Araceae Aloaceae Iridaceae Verbenaceae Lythraceae Bixaceae Vitaceae Boraginaceae Apocynaceae Rutaceae Primulaceae Anemiaceae Saururaceae Acanthaceae Basellaceae Polygonaceae Cucurbitaceae Burmanniaceae Brassicaceae Araliaceae Ericaceae Viscaceae Papaveraceae Aristolochiaceae Asclepiadaceae Annonaceae Rubiaceae Malpighiaceae Aspleniaceae Dryopteridaceae Sterculiaceae Azollaceae Gentianaceae Bataceae Elatinaceae Bignoniaceae Blechnaceae Urticaceae Convolvulaceae Ophioglossaceae Solanaceae Cabombaceae Moraceae Buddlejaceae Cyperaceae Commelinaceae Callitrichaceae Orchidaceae Menispermaceae Onagraceae Campanulaceae Cannaceae Cannabaceae Capparaceae Sapindaceae Juglandaceae Lauraceae Fagaceae Celastraceae Ulmaceae Ceratophyllaceae Parkeriaceae Loasaceae Oleaceae Portulacaceae Clethraceae Santalaceae Orobanchaceae Tiliaceae Cornaceae Fumariaceae Anacardiaceae Crassulaceae Cupressaceae Cuscutaceae Cymodoceaceae Cyrillaceae Dennstaedtiaceae Dioscoreaceae Ebenaceae Dipsacaceae Droseraceae Hydrocharitaceae Pontederiaceae Elaeagnaceae Hydrophyllaceae Ephedraceae Equisetaceae Polemoniaceae Eriocaulaceae Geraniaceae Hydrangeaceae Fouquieriaceae Frankeniaceae Garryaceae Loganiaceae Molluginaceae Crossosomataceae Zygophyllaceae Styracaceae Hamamelidaceae Bromeliaceae Cistaceae Saxifragaceae Violaceae Limnocharitaceae Clusiaceae Aquifoliaceae Balsaminaceae Isoetaceae Grossulariaceae Juncaceae Krameriaceae Lemnaceae Leitneriaceae Plumbaginaceae Linaceae Magnoliaceae Caprifoliaceae Lycopodiaceae Lygodiaceae Thelypteridaceae Berberidaceae Marsileaceae Mayacaceae Meliaceae Monotropaceae Myricaceae Haloragaceae Najadaceae Nelumbonaceae Nymphaeaceae Menyanthaceae Resedaceae Osmundaceae Oxalidaceae Passifloraceae Piperaceae Achatocarpaceae Rafflesiaceae Lentibulariaceae Pinaceae Plantaginaceae Platanaceae Polypodiaceae Polygalaceae Salicaceae Posidoniaceae Potamogetonaceae Pedaliaceae Psilotaceae Melastomataceae Ruppiaceae Arecaceae Salviniaceae Sarraceniaceae Goodeniaceae Selaginellaceae Aizoaceae Sapotaceae Smilacaceae Sparganiaceae Sphenocleaceae Theaceae Symplocaceae Tamaricaceae Marantaceae Thymelaeaceae Turneraceae Typhaceae Valerianaceae Flacourtiaceae Xyridaceae Zannichelliaceae	Anisacanthus Carlowrightia Dicliptera Dyschoriste Elytraria Hygrophila Justicia Nomaphila Ruellia Stenandrium Tetramerium Thunbergia Yeatesia	1) Ruellia caerulea Morong 2) Ruellia caroliniensis (J.F. Gmel.) Steud. 3) Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis 4) Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis var. caroliniensis 5) Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis var. serrulata Tharp & F.A. Barkley 6) Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. ciliosa (Pursh) R.W. Long 7) Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. ciliosa (Pursh) R.W. Long var. cinerascens (Fernald) Kartesz & Gandhi 8) Ruellia corzoi Tharp & F.A. Barkley 9) Ruellia davisiorum Tharp & F.A. Barkley 10) Ruellia drummondiana (Nees) A. Gray 11) Ruellia drushelii Tharp & F.A. Barkley 12) Ruellia drushelii Tharp & F.A. Barkley var. drushelii 13) Ruellia drushelii Tharp & F.A. Barkley var. macrocarpa Tharp & F.A. Barkley 14) Ruellia humilis Nutt. 15) Ruellia malacosperma Greenm. 16) Ruellia metziae Tharp 17) Ruellia nudiflora (Engelm. & A. Gray) Urb. 18) Ruellia nudiflora (Engelm. & A. Gray) Urb. var. nudiflora 19) Ruellia nudiflora (Engelm. & A. Gray) Urb. var. runyonii (Tharp & F.A. Barkley) B.L. Turner 20) Ruellia occidentalis (A. Gray) Tharp & F.A. Barkley 21) Ruellia parryi A. Gray 22) Ruellia pedunculata Torr. ex A. Gray 23) Ruellia pedunculata Torr. ex A. Gray ssp. pedunculata 24) Ruellia pedunculata Torr. ex A. Gray ssp. pinetorum (Fernald) R.W. Long 25) Ruellia strepens L. 26) Ruellia yucatana (Leonard) Tharp & F.A. Barkley
Pictures: genus Ruellia (Texas): Ruellia humilis Steve Hurst - USDA-NRCS PLANTS Database - Not copyrighted image - Views: 157 Ruellia humilis Robert H. Mohlenbrock USDA-NRCS PLANTS Database / USDA SCS. 1991. Southern wetland flora: Field office guide to plant species. South National Technical Center, Fort Worth. - Not copyrighted image - Views: 146 Ruellia humilis USDA-NRCS PLANTS Database / USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. - Not copyrighted image - Views: 140 Ruellia pedunculata USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 242. - Views: 161 Ruellia strepens Steve Hurst - USDA-NRCS PLANTS Database - Not copyrighted image - Views: 199 Ruellia strepens Robert H. Mohlenbrock USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. - Not copyrighted image - Views: 201 Ruellia strepens USDA-NRCS PLANTS Database / USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. - Not copyrighted image - Views: 202