Psathyrotes is a genus of North American plants in the sneezeweed tribe within the sunflower family.[3] It contains annual and perennial forbs and low subshrubs native to dry areas of southwestern North America. Common names include turtleback, brittlestem, and fanleaf.
| Psathyrotes | |
|---|---|
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| Psathyrotes ramosissima | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Helenieae |
| Subtribe: | Psathyrotinae |
| Genus: | Psathyrotes A.Gray |
| Type species | |
| Psathyrotes annua | |
| Synonyms[2] | |
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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 (from the Greek psathurotes) refers to the brittleness of the stems.
- Psathyrotes annua (Nutt.) Gray (annual psathyrotes, mealy rosettes, turtleback) - CA NV UT AZ ID
- Synonyms: Bulbostylis annua Nutt.
- Annual or perennial forb
- Psathyrotes pilifera Gray (hairy-beast turtleback, hairybeast brittlestem) - NV UT AZ
- Annual forb
- Psathyrotes ramosissima (Torr.) Gray (velvet rosette, velvet turtleback, turtleback) - NV UT AZ CA, Baja California, Sonora
- Synonyms: Tetradymia ramosissima Torr.
- Annual or perennial forb or subshrub
- formerly included[2]
see Peucephyllum Psathyrotopsis Trichoptilium
- Psathyrotes incisa A.Gray - Trichoptilium incisum (A.Gray) A.Gray
- Psathyrotes purpusii Brandegee - Psathyrotopsis purpusii (Brandegee) Rydb.
- Psathyrotes scaposa A.Gray - Psathyrotopsis scaposa (A.Gray) H.Rob.
- Psathyrotes schottii (A.Gray) A.Gray - Peucephyllum schottii A.Gray
References
editExternal links
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Media related to Psathyrotes at Wikimedia Commons