CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record allium_yosemitense - Mon, Dec. 6, 2021, 01:07 ET b
Allium yosemitense
common nameYosemite onion
CalPhotos image
more photos
© 1994 Dean Wm. Taylor  Follow image link for photo data.
life form bulbiferous herb
CA Rare Plant Rank
List 1B.3
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.3: Not very endangered in California
state rank
S3      ranking system key
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingRare  07/82
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (6):
El Capitan (437B) 3711966, Wawona (437C) 3711956, Mariposa Grove (437D) 3711955, El Portal (438A) 3711967, Buckingham Mountain (438D) 3711957, Ascension Mountain (456C) 3711978
quad data info

Counties, states, regions:
Mariposa (MPA), Tuolumne (TUO)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Broadleafed upland forest (BUFrs)
•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Lower montane coniferous forest (LCFrs)/rocky, metamorphic or granitic
blooming period Apr-Jul  
elevation range535 - 2200 meters
Known from fewer than twenty occurrences. Possibly threatened by recreational activities. See Leaflets of Western Botany 1:132-133 (1934) for original description, Fremontia 8(1):15-18 (1980) for information on rediscovery, and Aliso 11(1):27-35 (1985) for taxonomic treatment.
full nameAllium yosemitense Eastw.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ALYO Element Code  PMLIL022L0
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 Mon, Dec. 6, 2021 from

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