Psathyrotes

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Psathyrotes
Psathyrotes ramosissima
Psathyrotes ramosissima
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Psathyrotes
A. Gray
Species

See text.

Psathyrotes is a genus of 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 (from the Greek psathurotes) refers to the brittleness of the stems.

[edit] Species

  • Psathyrotes annua (Nutt.) Gray (annual psathyrotes, mealy rosettes, turtleback)
    • Synonyms: Bulbostylis annua Nutt.
    • Annual or perennial forb
  • Psathyrotes pilifera Gray (hairy-beast turtleback, hairybeast brittlestem)
    • Annual forb
  • Psathyrotes ramosissima (Torr.) Gray (velvet rosette, velvet turtleback, turtleback)
    • Synonyms: Tetradymia ramosissima Torr.
    • Annual or perennial forb or subshrub
  • Psathyrotes scaposa Gray (naked turtleback)
    • Synonyms: Psathyrotopsis scaposa (Gray) H.E. Robins.
    • Annual or perennial forb

[edit] References and external links

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