Taxon Details

Sidalcea keckii

Keck's checkerbloom

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Taxon Summary:

Sidalcea keckii, commonly known as Keck's checkerbloom, is a annual herb in the Malvaceae that is found only in California. It occurs within Cismontane woodland, and Valley and foothill grassland, growing at elevations from 75 to 650 meters. Sidalcea keckii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Lifeform: annual herb
Blooming Period: Apr-May(Jun)
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Elevation:
75 - 650 meters
245 - 2135 feet
General Habitats:
  • Cismontane woodland
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Clay
  • Serpentine
Notes:
Rediscovered in 1992 by J. Stebbins and K. Kirkpatrick. Plants from inner north coast ranges may actually be S. diploscypha; needs study. See Contributions from the Dudley Herbarium 3:55-56 (1940) for original description.
Threats:
Taxonomy:
Threat List Total: 6
Total EOs % of EOs
EOs with Threat Listed: 6 12 %
THREAT LIST:
Grazing 2 4%
Non-native plant impacts 2 4%
Other 1 2%
Road/trail construction/maint. 1 2%
Agriculture 1 2%
Total Occurrences: 50
Element Occurrence Ranks:
A B C D X U
2 0 0 1 1 46
Occurrence Status:
Historical >20 Years 23
Recent <=20 Years 27
Presence:
Presumed Extant 49
Possibly Extirpated 0
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Colusa (COL)?, Fresno (FRE), Glenn (GLE), Lake (LAK), Merced (MER), Napa (NAP)?, Solano (SOL)?, Tulare (TUL), Yolo (YOL)?
Quads: Name (Quad Code)
Allendale (3812148), Antioch North (3812117), Bird Valley (3812271), Birds Landing (3812127)?, Capell Valley (3812242), Denverton (3812128), Elk Creek (3912255), Gilmore Peak (3912235)?, Globe (3611817), Guinda (3812272), Humphreys Station (3611984), Jericho Valley (3812274)?, Knoxville (3812273)?, Lake Berryessa (3812252), Lodoga (3912234)?, Merced (3712034), Merritt (3812157), Monticello Dam (3812251)?, Mt. Vaca (3812241), Piedra (3611974), Pine Flat Dam (3611973), Salt Canyon (3912213), Saxon (3812146), Stonyford (3912245), Success Dam (3611818)*, Walter Springs (3812263), White River (3511877), Winters (3812158), Yosemite Lake (3712044)
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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