CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record sidalcea_malviflora_ssp._patula - Sun, Nov. 28, 2021 00:39 ET c
Sidalcea malviflora ssp. patula
common nameSiskiyou checkerbloom
CalPhotos image
more photos
© 2004 Dean Wm. Taylor  Follow image link for photo data.
life form rhizomatous herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G5T2      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (26):
Albion (553A) 3912327, Bridgeville (635A) 4012347, Redcrest (635B) 4012348, Myers Flat (635D) 4012337, Scotia (636A) 4012441, Taylor Peak (636B) 4012442, Capetown (637A) 4012443, Petrolia (637D) 4012433, Board Camp Mountain (652B) 4012366, Iaqua Buttes (653B) 4012368, Owl Creek (653C) 4012358, Yager Junction (653D) 4012357, Fields Landing (654B) 4012462, Fortuna (654C) 4012452, Hydesville (654D) 4012451, Ferndale (655D) 4012453, Denny (669B) 4012384, Grouse Mountain (670C) 4012376, Korbel (671C) 4012378, Maple Creek (671D) 4012377, Arcata North (672A) 4012481, Eureka (672C)(*?) 4012472, Bald Hills (688B) 4112328, Orick (706D) 4112431, Smith River (740B) 4112482, Crescent City (740C) 4112472
quad data info

Counties, states, regions:
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), Oregon (OR)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Coastal bluff scrub (CBScr)
•Coastal prairie (CoPrr)
•North Coast coniferous forest (NCFrs)/often roadcuts
blooming period May-Aug  
elevation range15 - 880 meters
Threatened by road widening and non-native plants. Possibly threatened by logging, grazing, and trampling.
full nameSidalcea malviflora (DC.) Benth. ssp. patula C.L. Hitchc.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDMAL110F9
CNPS chapter link chapter content  North Coast database for this species
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Sun, Nov. 28, 2021 from

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