Taxon  Report   11920    
Petrophytum caespitosum  (Nutt.) Rydb.
Mat rockspirea
Petrophytum caespitosum
© 2010 Zoya Akulova
Photos from
CalPhotos / Calflora
Petrophytum caespitosum
© 2003 Michael Charters
Petrophytum caespitosum
© 2014 Zoya Akulova
Petrophytum caespitosum, 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)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Petrophytum caespitosum
© 2000 John Game
Family: ROSACEAE  
Genus: Petrophytum
Subspecies and Varieties:
Communities: Pinyon-Juniper Woodland, Yellow Pine Forest, Red Fir Forest
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Petrophyton caespitosum
More information about  Petrophytum caespitosum
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 16, 2019).