Species Details

Sidalcea malviflora ssp. patula

Siskiyou checkerbloom

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Photo of Sidalcea malviflora ssp. patula
©2004 Dean Wm. Taylor
Photo of Sidalcea malviflora ssp. patula
©2005 Dean Wm. Taylor
Photo of Sidalcea malviflora ssp. patula
©2008 Sierra Pacific Industries
Scientific Name:
Sidalcea malviflora (DC.) Benth. ssp. patula C.L. Hitchc.
Common Name:
Siskiyou checkerbloom
Family: Malvaceae
Element Code: PDMAL110F9
USDA Plants Symbol: SIMAP
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: (Mar-Apr)May-Aug
JFMAMJJASOND
Elevation:
15 - 1230 meters
50 - 4035 feet
General Habitats:
  • Coastal bluff scrub
  • Coastal prairie
  • North Coast coniferous forest
Microhabitat Details: often roadcuts
Microhabitat:
  • Roadsides (often)
Notes:
Threats:
Threatened by road widening and non-native plants. Possibly threatened by logging, grazing, and trampling.
Taxonomy:
Threat List Total: 11
Total EOs % of EOs
EOs with Threat Listed: 41 68 %
THREAT LIST:
Road/trail construction/maint. 20 33%
Grazing 18 30%
Logging 17 28%
Non-native plant impacts 9 15%
Other 6 10%
Total Occurrences: 60
Element Occurrence Ranks:
A B C D X U
10 22 11 1 0 16
Occurrence Status:
Historical >20 Years 13
Recent <=20 Years 47
Presence:
Presumed Extant 60
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN)
Quads: Name (Quad Code)
Albion (3912327), Arcata North (4012481), Bald Hills (4112328), Board Camp Mtn. (4012366), Bridgeville (4012347), Buckeye Mtn. (4012432), Capetown (4012443), Crescent City (4112472), Denny (4012384), Eureka (4012472)(?), Ferndale (4012453), Fields Landing (4012462), Fortuna (4012452), Garberville (4012317), Grouse Mtn. (4012376), Hydesville (4012451), Iaqua Buttes (4012368), Korbel (4012378), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), Myers Flat (4012337), Orick (4112431), Owl Creek (4012358), Petrolia (4012433), Salyer (4012385), Scotia (4012441), Shubrick Peak (4012422), Smith River (4112482), Taylor Peak (4012442), Yager Junction (4012357)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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