Psilostrophe cooperi

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Psilostrophe cooperi
Psilostrophe cooperi 3.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Psilostrophe
Species:
P. cooperi
Binomial name
Psilostrophe cooperi

Psilostrophe cooperi is a flowering plant in the daisy family known by the common names Cooper's paper daisy and whitestem paperflower. It is native to the Mojave and Sonoran Deserts of California, the Southwestern United States, and northwestern Mexico.

Contents

Description

P. cooperi is perennial shrub with stems rising from a woody base to form that a nearly spherical form. [1] It is a low, spreading bush with pale green, hairy foliage. It is drought deciduous, dropping its leaves in times of drought. [1] The linear leaves are alternate. [1]

The daisylike flower heads have 3 to 8 deeply toothed golden-yellow ray florets. The flower heads are often bunched together at the tops of the stems in a rounded spray. The ray flowers persist for a time and then dry and become papery while maintaining their yellow color. The 3 toothed corollas of the dried ray flowers fold back over the phyllaries. [1]

Several related species are poisonous to livestock. [2]

Distribution and habitat

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References

  1. 1 2 3 4 Mojave Desert Wildflowers, Pam MacKay, 2nd Ed. 2013, p. 211
  2. Spellenberg, Richard (2001) [1979]. National Audubon Society Field Guide to North American Wildflowers: Western Region (rev ed.). Knopf. p. 393. ISBN   978-0-375-40233-3.