Calflora
Taxon  Report   6916    
Psilostrophe cooperi  (A. Gray) Greene
Cooper's paper daisy,  Paper flower, Paperflower, Whitestem paperflower
Psilostrophe cooperi
© 2004 James M. Andre
Photos from
CalPhotos / Calflora
Psilostrophe cooperi
© 2009 Thomas Stoughton
Psilostrophe cooperi
© 2012 Keir Morse
Psilostrophe cooperi, a dicot, is a shrub that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Psilostrophe cooperi
© 2010 Aaron Schusteff
Family: ASTERACEAE  
Genus: Psilostrophe
Communities: Creosote Bush Scrub, Joshua Tree Woodland
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Riddellia cooperi
More information about  Psilostrophe cooperi
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (PSCO2)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 14, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.