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Allium tribracteatum

Allium tribracteatum
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species: A. tribracteatum
Binomial name
Allium tribracteatum

Allium tribracteatum, known by the common name Threebract onion, is a species of wild onion. [1]


  • Distribution 1
  • Description 2
  • References 3
  • External links 4


The plant is endemic to California, where it is known only from the slopes of the Sierra Nevada in Tuolumne and Calaveras Counties. [1][2]


Allium tribracteatum is a small onion plant producing a stem only a few centimeters long from an oval-shaped bulb. There are two leaves which are usually much longer than the stem. The inflorescence contains up to 30 petite white to purple flowers, each less than a centimeter long. Tepals are white to pink with red or purple midveins; anthers purple; pollen gray.[1][3]


  1. ^ a b c Jepson . accessed 3.20.2013
  2. ^ Allium tribracteatumFlora of North America v 26 p 269,
  3. ^ Torrey, John. 1857. Reports of explorations and surveys : to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean, made under the direction of the Secretary of War 4(5): 148.

External links

  • (three bracted onion, threebract onion)Allium tribracteatumCalFlora database:
  • Allium tribracteatumJepson Manual Treatment —
  • Allium tribracteatumUSDA Plants Profile;
  • Flora of North America; Allium tribracteatum
  • — U.C. Photo galleryAllium tribracteatum

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