Allium tribracteatum
Common Name: three-bracted onion
Family: Alliaceae
Element Code: PMLIL022D0
Full Name: Allium tribracteatum Torr.

2011 Barry Breckling
Biology Glossary
  • Lifeform: perennial bulbiferous herb
  • Blooming Period: Apr-Aug
  • Habitat: volcanic.
    • Chaparral
    • Lower montane coniferous forest
    • Upper montane coniferous forest
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 35
  • Element Occurrence Ranks:
    A B C D X U
    5 7 3 0 0 20
  • Population Status:
    >20 yrs
    <=20 yrs
    12 23
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    35 0 0
Notes Glossary
  • 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.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1988-01-01
  • Last Update: 2011-02-08
Location Glossary
  • Elevation: 1100 - 3000 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Alpine (ALP),  Amador (AMA),  Calaveras (CAL),  El Dorado (ELD),  Tuolumne (TUO)
  • Quads:   name (DWR code) USGS code
    Cherry Lake South (456B) 3711988,  Tiltill Mtn. (472C) 3811916,  Piute Mtn. (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
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 91
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website [accessed ].

3711988=Cherry Lake South (456B) 3711988;3811916=Tiltill Mtn. (472C) 3811916;3811915=Piute Mtn. (472D) 3811915;3811928=Pinecrest (473B) 3811928;3812021=Strawberry (474A) 3812021;3812022=Crandall Peak (474B) 3812022;3812012=Twain Harte (474C) 3812012;3812011=Hull Creek (474D) 3812011;3812023=Stanislaus (475A) 3812023;3811937=Dardanelle (490D) 3811937;3812041=Tamarack (491A) 3812041;3812032=Boards Crossing (491C) 3812032;3812031=Liberty Hill (491D) 3812031;3812043=Garnet Hill (492A) 3812043;3812044=Devils Nose (492B) 3812044;3812053=Peddler Hill (508D) 3812053