| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Asteraceae | Palafoxia texana var. ambigua | Texas Palafoxia | Calcareous, rocky or sandy sites, also in dry, disturbed areas. | W. LA west to s. TX and TAM, more coastal in distribution than var. texana. |  |
| Asteraceae | Palafoxia texana var. texana | Tamaulipan Palafox | Rocky or gravelly calcareous soils in thornscrub. | Tamaulipan Plains area of s. TX (barely entering our area), south and west to TAM, NLE, COA, and CHI. |  |