Psathyrotes
Psathyrotes is a genus of North American plants in the sneezeweed tribe within the sunflower family. It contains annual and perennial forbs and low subshrubs native to dry areas of southwestern North America. Common names include turtleback, brittlestem, and fanleaf.
The plants are low, densely branching, hairy, and scaly, with a turpentine-like odor. Leaves are alternate and hairy. The Latin name of the genus refers to the brittleness of the stems.
;Species
- Psathyrotes annua Gray - CA NV UT AZ ID
- * Synonyms: Bulbostylis annua Nutt.
- * Annual or perennial forb
- Psathyrotes pilifera Gray - NV UT AZ
- * Annual forb
- Psathyrotes ramosissima Gray - NV UT AZ CA, Baja California, Sonora
- * Synonyms: Tetradymia ramosissima Torr.
- * Annual or perennial forb or subshrub
;formerly included
see Peucephyllum Psathyrotopsis Trichoptilium
- Psathyrotes incisa A.Gray - Trichoptilium incisum A.Gray
- Psathyrotes purpusii Brandegee - Psathyrotopsis purpusii Rydb.
- Psathyrotes scaposa A.Gray - Psathyrotopsis scaposa H.Rob.
- Psathyrotes schottii A.Gray - Peucephyllum schottii A.Gray
