| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Apodanthaceae | Apodanthaceae |  | |||
| Apodanthaceae | Pilostyles | Pilostyles | | ||
| Apodanthaceae | Pilostyles thurberi | Thurber's Pilostyles | Parasitic within the stems of Dalea and (further west) Psorothamnus. | C. TX west to NV and s. CA, south to c. Mexico. | |