CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record allium_jepsonii - Wed, Dec. 1, 2021, 18:58 ET b
Allium jepsonii
common nameJepson's onion
CalPhotos image
more photos
© 2004 Dean Wm. Taylor  Follow image link for photo data.
life form bulbiferous herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (9):
Tuolumne (457B) 3712082, Sonora (458B) 3712084, Shingle Springs (510B) 3812068, Auburn (527A) 3812181, Berry Creek (575B) 3912164, Cherokee (576A) 3912165, Pulga (591C) 3912174, Stirling City (592A) 3912185, Paradise East (592D) 3912175
quad data info

Counties, states, regions:
Butte (BUT), El Dorado (ELD), Placer (PLA), Tuolumne (TUO)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Lower montane coniferous forest (LCFrs)/Serpentinite or volcanic
blooming period Apr-Aug  
elevation range300 - 1320 meters
See Plant Life 28:63 (1972) for original description, and Madroņo 36(2):122-130 (1989) for revised nomenclature.
full nameAllium jepsonii (Traub) Denison & D. McNeal
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ALJE Element Code  PMLIL022V0
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 1, 2021 from

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