Calflora
Taxon  Report   7580    
Sidalcea oregana  (Torr. & A. Gray) A. Gray  ssp. valida  (Greene) C. L. Hitchc.
Kenwood marsh checkerbloom
Sidalcea oregana ssp. valida
© 2010 US Fish & Wildlife Service
Photos from
CalPhotos / Calflora
Sidalcea oregana ssp. valida, a dicot, is a perennial herb (rhizomatous) that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

It is listed by the State of California as Endangered and by the Federal Government as 'Endangered '.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Sidalcea oregana ssp. valida
© 2010 US Fish & Wildlife Service
Family: MALVACEAE  
Genus: Sidalcea
Parent: Sidalcea oregana
Communities: Freshwater Wetlands, wetland-riparian

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: freshwater-marsh

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Sidalcea spicata var. valida
PLANTS: Sidalcea valida
More information about  Sidalcea oregana ssp. valida
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (SIORV)

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 21, 2018).

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