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Contents

   



(Top)
 


1 Distribution and habitat  





2 Description  





3 References  





4 External links  














Allium tribracteatum






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From Wikipedia, the free encyclopedia
 


Threebract onion

Conservation status


Imperiled  (NatureServe)[1]

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

Torr.

Synonyms[2]
  • Allium tolmiei Baker ex J.M.Coult. 1885, illegitimate homonym not Baker 1876

Allium tribracteatum, known by the common name Threebract onion,[3] is a species of wild onion[4] found in California.

Distribution and habitat[edit]

The plant is endemictoCalifornia, where it is known only from the slopes of the Sierra NevadainTuolumne and Calaveras Counties.[4][5][6]

Description[edit]

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.[4][7][5] Flowers bloom March to May.[5]

References[edit]

  1. ^ "NatureServe Explorer 2.0".
  • ^ Kew World Checklist of Selected Plant Families
  • ^ CalFlora taxon report 237, Allium tribracteatum Torrey (three bracted onion, threebract onion)
  • ^ a b c Jepson Treament, University of California, Berkeley . accessed 3.20.2013
  • ^ a b c Flora of North America v 26 p 269, Allium tribracteatum
  • ^ United States department of Agriculture Plants Profile, Allium tribracteatum
  • ^ 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[edit]


  • t
  • e

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Allium_tribracteatum&oldid=1168587283"

    Categories: 
    NatureServe imperiled species
    Allium
    Endemic flora of California
    Flora of the Sierra Nevada (United States)
    Natural history of the California chaparral and woodlands
    Natural history of Calaveras County, California
    Natural history of Tuolumne County, California
    Onions
    Taxa named by John Torrey
    Threatened flora of California
    Allium stubs
    Hidden categories: 
    Articles with short description
    Short description is different from Wikidata
    Articles with 'species' microformats
    All stub articles
     



    This page was last edited on 3 August 2023, at 18:27 (UTC).

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