CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record allium_tribracteatum - Sun, Nov. 28, 2021 13:39 ET c
Allium tribracteatum
common namethree-bracted 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 (16):
Cherry Lake South (456B) 3711988, Tiltill Mountain (472C) 3811916, Piute Mountain (472D) 3811915, Pinecrest (473B) 3811928, Strawberry (474A) 3812021, Crandall Peak (474B) 3812022, Twain Harte (474C) 3812012, Hull Creek (474D) 3812011, Stanislaus (475A) 3812023, Dardanelle (490D) 3811937, Tamarack (491A) 3812041, Boards Crossing (491C) 3812032, Liberty Hill (491D) 3812031, Garnet Hill (492A) 3812043, Devils Nose (492B) 3812044, Peddler Hill (508D) 3812053
quad data info

Counties, states, regions:
Alpine (ALP), Amador (AMA), Calaveras (CAL), El Dorado (ELD), Tuolumne (TUO)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Lower montane coniferous forest (LCFrs)
•Upper montane coniferous forest (UCFrs)/volcanic
blooming period Apr-Aug  
elevation range1100 - 3000 meters
Threatened by vehicles. See Report of the Pacific Railroad Expedition 4:148 (1857) for original description, and Aliso 11(1):27-35 (1985) for revised treatment.
full nameAllium tribracteatum Torr.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ALTR2 Element Code  PMLIL022D0
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 Sun, Nov. 28, 2021 from

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