Species Details

Calochortus umbellatus

Oakland star-tulip

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Scientific Name:
Calochortus umbellatus A.W. Wood
Common Name:
Oakland star-tulip
Family: Liliaceae
Element Code: PMLIL0D1E0
USDA Plants Symbol: CAUM
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: Mar-May
Elevation:
100 - 700 meters
330 - 2295 feet
General Habitat:
  • Broadleafed upland forest
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
  • Valley and foothill grassland
General Micro Habitat:
Micro Habitat:
  • Serpentinite (often)
Notes:
Possibly threatened by recreational activities. See Proceedings of the Academy of Natural Sciences of Philadelphia 20(6):168 (1868) for original description, and Proceedings of the California Academy of Sciences III 2:123-124 (1901) for taxonomic treatment.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Alameda (ALA), Contra Costa (CCA), Marin (MRN), San Mateo (SMT), Santa Clara (SCL)
Quads: Name (Quad Code)
Bolinas (3712286), Briones Valley (3712282), Diablo (3712178), Hayward (3712261), Las Trampas Ridge (3712271), Lick Observatory (3712136), Mt. Day (3712146), Novato (3812215), Oakland East (3712272), Point Reyes NE (3812227), Richmond (3712283), San Geronimo (3812216), San Mateo (3712253), San Quentin (3712284), San Rafael (3712285), Walnut Creek (3712281), Woodside (3712243)
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