CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14nov 11-15-14
Status: record sidalcea_oregana_ssp._valida - Sat, Nov. 29, 2014 02:13 ET c
Sidalcea oregana ssp. valida
common nameKenwood Marsh checkerbloom
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life form rhizomatous herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G5T1      ranking system key
Where did the "RED" code go?
CA state listingEndangered  01/82
federal listingEndangered  10/22/97
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Topographic quads (2):
Kenwood (501A) 3812245, Mount St. Helena (517B) 3812266
quad data info

Counties, states, regions:
Sonoma (SON)
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CNPS habitats•Marshes and swamps (MshSw)(freshwater)
blooming period Jun-Sep  
elevation range115 - 150 meters
Known from only two occurrences. Threatened by grazing and hydrological alteration, and possibly by competition with native and non-native plants. See Pittonia 3:157-158 (1897) for original description, and University of Washington Publications in Biology 18:56-58 (1957) for revised nomenclature.
full nameSidalcea oregana (Nutt.) Gray ssp. valida (Greene) C.L. Hitchc.
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym  SIORV Element Code  PDMAL110K5
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2014. Inventory of Rare and Endangered Plants (online edition, v7-14nov). California Native Plant Society. Sacramento, CA. Accessed on Sat, Nov. 29, 2014 from

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