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Contents

   



(Top)
 


1 Description  





2 Varieties  





3 Distribution and habitat  





4 References  





5 External links  














Allium howellii






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From Wikipedia, the free encyclopedia
 

(Redirected from Allium robustum)

Allium howellii

Conservation status


Vulnerable  (NatureServe)[1]

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

Eastw.

Allium howellii is a North American species of wild onion known by the common name Howell's onion. It is endemic to California.

Description

[edit]

Allium howellii is a tall onion plant, producing a stem which may exceed half a meter in height from a reddish-brown bulb one to two centimeters long. There is a single cylindrical leaf about as long as the stem. The inflorescence holds up to 100 dark-veined lavender to white flowers, each under a centimeter long.[2][3][4]

Varieties

[edit]

Several varieties have been named:[5][6]

Distribution and habitat

[edit]

Howell's onion grows in the granite and serpentine soils of several mountain ranges, hills, and valleys from San Joaquin CountytoSan Bernardino County.[9][10][6][11]

References

[edit]
  1. ^ "NatureServe Explorer 2.0".
  • ^ Flora of North America Allium howellii
  • ^ Jepson Manual Treatment
  • ^ USDA Plants Profile
  • ^ Kew World Checklist of Selected Plant Families
  • ^ a b Calflora Consortium of California Herbaria Taxon Report 199 , Allium howellii Eastw., Howell's onion
  • ^ Traub, Hamilton Paul. 1972. Plant Life 28: 63–64
  • ^ Traub, Hamilton Paul, & Aase, Hannah Caroline. 1959. in Munz, Philip Alexander & Keck, David Daniels. California Flora page 1376
  • ^ Eastwood, Alice 1938. New Species in Liliaceae. Leaflets of Western Botany 2(7): 109
  • ^ Tropicos, Allium howellii Eastw.
  • ^ Biota of North America 2013 county distribution map
  • [edit]


  • t
  • e

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Allium_howellii&oldid=1185992697"

    Categories: 
    NatureServe vulnerable species
    Allium
    Endemic flora of California
    Natural history of the California chaparral and woodlands
    Natural history of the California Coast Ranges
    Natural history of the Transverse Ranges
    Tehachapi Mountains
    Plants described in 1938
    Taxa named by Alice Eastwood
    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 20 November 2023, at 07:04 (UTC).

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