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Psathyrotes

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Kingdom
  
Plantae

Subfamily
  
Asteroideae

Scientific name
  
Psathyrotes

Rank
  
Genus

Order
  
Asterales

Tribe
  
Helenieae

Higher classification
  
Daisy family

Psathyrotes httpsuploadwikimediaorgwikipediacommonsthu

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Trichoptilium, Thiseltonia, Basedowia

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 (from the Greek psathurotes) refers to the brittleness of the stems.

Species
  • 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

    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

    Psathyrotes Wikipedia
    (Text) CC BY-SA