Species Details

Allium jepsonii

Jepson's onion

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Photo by © 2019 Steven Perry  max-height:128px; max-width:145px;
© 2019 Steven Perry
Photo by © 2020 Belinda Lo  max-height:128px; max-width:145px;
© 2020 Belinda Lo
Photo by © 2019 Steven Perry  max-height:128px; max-width:145px;
© 2019 Steven Perry
Scientific Name:
Allium jepsonii (Traub) Denison & D. McNeal
Common Name:
Jepson's onion
Family: Alliaceae
Element Code: PMLIL022V0
USDA Plants Symbol: ALJE
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: Apr-Aug
Elevation:
300 - 1320 meters
985 - 4330 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Serpentinite
  • Volcanic
Notes:
See Plant Life 28:63 (1972) for original description, and MadroƱo 36(2):122-130 (1989) for revised nomenclature.
Threats:
Taxonomy:
Other:
Total Occurrences: 26
Element Occurrence Ranks:
A B C D X U
2 14 3 0 0 7
Occurrence Status:
Historical >20 Years 10
Recent <=20 Years 16
Presence:
Presumed Extant 26
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Butte (BUT), El Dorado (ELD), Placer (PLA), Tuolumne (TUO)
Quads: Name (Quad Code)
Auburn (3812181), Berry Creek (3912164), Cherokee (3912165), Paradise East (3912175), Pulga (3912174), Shingle Springs (3812068), Sonora (3712084), Stirling City (3912185)
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