| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Polemoniaceae | Giliastrum acerosum | Prickleaf Gilia | Dry rocky and sandy areas. | W. KS and s. CO south through nc. and c. TX, w. TX, NM, and e. AZ to Mexico. |  |
| Polemoniaceae | Giliastrum incisum | Splitleaf Gilia | Rocky, sandy, or gravelly areas. | E., c. & w. TX and NM south to Mexico. | |
| Polemoniaceae | Giliastrum ludens | Endemic to the Rio Grande Plains of s. TX. | |||
| Polemoniaceae | Giliastrum rigidulum | Dry rocky and sandy prairies. | Ec, c., & w. TX and se. NM south to Mexico. |  |