Federal and State Listed Plants in Texas

In Texas, animal or plant species of conservation concern may be listed as threatened or endangered under the authority of state law and/or under the U.S. Endangered Species Act (ESA). Species may be listed as state threatened or endangered and not federally listed. The state list only addresses the status of a species within Texas. A federal listing means that a species is in danger of extinction throughout all or a significant portion of its range which may encompass several other states or nations.

Candidate species are those organisms the U.S. Fish and Wildlife Service (USFWS) has sufficient information on to propose as endangered or threatened under the ESA but development of a proposed listing regulation is precluded by other higher priority listing activities. Unlike species listed under the ESA, candidates receive no statutory protection.

Species are ranked (Global and State) using a conservation status system established by NatureServe.

Common Name Scientific Name State Status Federal Status Global Rank State Rank
Ashy Dogweed Thymophylla tephroleuca Endangered Endangered G2 S2
Black Lace Cactus Echinocereus reichenbachii var. albertii Endangered Endangered G5T1Q S1
Bracted Twistflower Streptanthus bracteatus Candidate G1G2 S1S2
Bunched Cory Cactus Coryphantha ramillosa ssp. ramillosa Threatened Threatened G2G3T2T3 S2S3
Chisos Mountains Hedgehog Cactus Echinocereus chisoensis var. chisoensis Threatened Threatened G2T1 S1
Davis' Green Pitaya Echinocereus davisii Endangered Endangered G1 S1
Earth Fruit Geocarpon minimum Threatened Threatened G2 S1
Guadalupe Fescue Festuca ligulata Candidate G1 S1
Hinckley's Oak Quercus hinckleyi Threatened Threatened G2 S2
Johnston's Frankenia Frankenia johnstonii Endangered G3 S3
Large-fruited Sand-verbena Abronia macrocarpa Endangered Endangered G2 S2
Little Aguja Pondweed Potamogeton clystocarpus Endangered Endangered G1 S1
Lloyd's Mariposa Cactus Sclerocactus mariposensis Threatened Threatened G2 S2
Navasota Ladies'-tresses Spiranthes parksii Endangered Endangered G3 S3
Neches River Rose-mallow Hibiscus dasycalyx Threatened G1 S1
Nellie's Cory Cactus Escobaria minima Endangered Endangered G1 S1
Pecos Sunflower Helianthus paradoxus Threatened Threatened G2 S1
Slender Rushpea Hoffmannseggia tenella Endangered Endangered G1S1 S1
Sneed's Pincushion Cactus Escobaria sneedii var. sneedii Endangered Endangered G2T2 S2
South Texas Ambrosia Ambrosia cheiranthifolia Endangered Endangered G2 S2
Star Cactus Astrophytum asterias Endangered Endangered G1 S1
Terlingua Creek Cat's-eye Cryptantha crassipes Endangered Endangered G1 S1
Texas Ayenia Ayenia limitaris Endangered Endangered G2 S1
Texas Golden Gladecress Leavenworthia texana Endangered Endangered G1 S1
Texas Poppy-mallow Callirhoe scabriuscula Endangered Endangered G2 S2
Texas Prairie Dawn Hymenoxys texana Endangered Endangered G2 S2
Texas Snowbells Styrax platanifolius spp. texanus Endangered Endangered G3T1 S1
Texas Trailing Phlox Phlox nivalis ssp. texensis Endangered Endangered G4T2 S2
Texas Wild Rice Zizania texana Endangered Endangered G1 S1
Tobusch Fishhook Cactus Sclerocactus brevihamatus ssp. tobuschii Endangered Endangered G4T3 S3
Walker's Manioc Manihot walkerae Endangered Endangered G2 S1
White Bladderpod Physaria pallida Endangered Endangered G1 S1
Zapata Bladderpod Physaria thamnophila Endangered Endangered G1 S1
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