Jepson's Onion / Center For Plant Conservation
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Plant Profile

Jepson's Onion (Allium jepsonii)

  • Global Rank: G2 - Imperiled
  • Legal Status: N/A
  • Family: Liliaceae
  • State: CA
  • Nature Serve ID: 159138
  • Lifeform: Forb/herb
  • Date Inducted in National Collection: 01/21/2022

Where is Jepson's Onion (Allium jepsonii) located in the wild?


Cismontane woodland, lower montane coniferous forest; serpentinite or volcanic. (NatureServe 2022)


California endemic found in Tuolumne, Butte, El Dorado, and Placer Counties (NatureServe 2022).

States & Provinces:

Jepson's Onion can be found in California

Which CPC Partners conserve Jepson's Onion (Allium jepsonii)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

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Taxon Allium jepsonii
Authority (Ownbey ex Traub) Dension & McNeal
Family Liliaceae
CPC Number 12977
ITIS 185464
Duration Perennial
Common Names Jepson's Onion
Associated Scientific Names Allium jepsonii
Distribution California endemic found in Tuolumne, Butte, El Dorado, and Placer Counties (NatureServe 2022).
State Rank
State State Rank
California S2
Ecological Relationships


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