| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Polemoniaceae | Giliastrum acerosum | Prickleaf Gilia | Dry rocky and sandy areas. | W. Kansas and s. Colorado south through nc. and c. Texas, w. Texas, New Mexico, and e. Arizona to Mexico. |  (c) Cressler, Alan M. |
| Polemoniaceae | Giliastrum incisum | Splitleaf Gilia | Rocky, sandy, or gravelly areas. | E., c. & w. Texas and New Mexico south to Mexico. | |
| Polemoniaceae | Giliastrum ludens | Endemic to the Rio Grande Plains of s. Texas. | |||
| Polemoniaceae | Giliastrum rigidulum | Dry rocky and sandy prairies. | Ec, c., & w. Texas and se. New Mexico south to Mexico. |  (c) Bradley, Keith |