Species Details

Sidalcea stipularis

Scadden Flat checkerbloom

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Scientific Name:
Sidalcea stipularis J.T. Howell & G. True
Common Name:
Scadden Flat checkerbloom
Family: Malvaceae
Element Code: PDMAL110R0
USDA Plants Symbol: SIST3
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Jul-Aug
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Elevation:
700 - 730 meters
2295 - 2395 feet
General Habitats:
  • Marshes and swamps (montane freshwater)
Microhabitat Details:
Microhabitat:
Notes:
Known from only two occurrences near Grass Valley. One occurrence voluntarily protected by landowner. Threatened by altered hydrology, grazing, mowing, and non-native plants. See Four Seasons 4(4):20-22 (1974) for original description.
Threats:
Taxonomy:
Threat List Total: 6
Total EOs % of EOs
EOs with Threat Listed: 2 100 %
THREAT LIST:
Altered flood/tidal/hydrologic regime 2 100%
Non-native plant impacts 2 100%
Other 2 100%
Road/trail construction/maint. 2 100%
Biocides 1 50%
Total Occurrences: 2
Element Occurrence Ranks:
A B C D X U
0 0 1 1 0 0
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 1
Presence:
Presumed Extant 2
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Nevada (NEV)
Quads: Name (Quad Code)
Chicago Park (3912028), Grass Valley (3912121)
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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