Species Details

Sidalcea calycosa ssp. rhizomata

Point Reyes checkerbloom

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Scientific Name:
Sidalcea calycosa Jones ssp. rhizomata (Jeps.) Munz
Common Name:
Point Reyes checkerbloom
Family: Malvaceae
Element Code: PDMAL11012
USDA Plants Symbol: SICAR
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Apr-Sep
Elevation:
3 - 75 meters
10 - 245 feet
General Habitat:
  • Marshes and swamps (freshwater, near coast)
General Micro Habitat:
Micro Habitat:
Notes:
Threatened by non-native plants, road maintenance, foot traffic, and pipeline construction. Possibly threatened by grazing.  See Manual of the Flowering Plants of California, p. 629 (1925) by W.L. Jepson for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 34
Element Occurrence Ranks:
A B C D X U
1 17 6 1 0 9
Occurrence Status:
Historical >20 Years 19
Recent <=20 Years 15
Presence:
Presumed Extant 34
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN), Mendocino (MEN), Sonoma (SON)
Quads: Name (Quad Code)
Albion (3912327), Bolinas (3712286), Drakes Bay (3812218), Duncans Mills (3812341), Elk (3912326), Inverness (3812217), Mallo Pass Creek (3912316), Petaluma (3812226), Petaluma River (3812225), Point Arena (3812386), San Rafael (3712285), Saunders Reef (3812376), Stewarts Point (3812364), Tomales (3812228), Valley Ford (3812238)
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.

Map

Presumed Extant
Counties   Quads