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Allium campanulatum

Allium campanulatum , Photo: US Forest Service

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Amaryllidaceae
Subfamilia: Allioideae
Tribus: Allieae
Genus: Allium
Subgenus: A. subg. Amerallium
Sectio: A. sect. Lophioprason
Species: Allium campanulatum

Allium campanulatum S.Watson, 1879

Allium austiniae M.E. Jones
Allium bidwelliae S.Watson
Allium bullardii Davidson
Allium campanulatum var. bidwelliae (S.Watson) Jeps.
Allium tenellum Davidson

Native distribution areas:

Continental: Northern America
California; Nevada; Oregon

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

Watson, S., Proceedings of the American Academy of Arts and Sciences. Boston, MA 14:231. 1879
USDA, ARS, Germplasm Resources Information Network. Allium campanulatum in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.
Govaerts, R. et al. 2017. Allium campanulatum in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2017 Sep 03. Reference page.

Vernacular names
English: dusky onion

Allium campanulatum is a species of wild onion known by the common name dusky onion or Sierra onion. This is a flowering plant native to the western United States from southeastern Washington and northern Oregon to southern California, and western Nevada. The dusky onion grows in foothills and mountains, especially in dry areas, such as chaparral habitats.[3][4][5]

The dusky onion, Allium campanulatum, grows from a gray-brown bulb one to two centimeters wide which may extend tiny rhizomes and produce small daughter bulblets. It rises on a stout stem and has usually two long, thin leaves that wither before the flowers bloom. On top of the stem is an inflorescence of 10 to 50 flowers. Each flower is half a centimeter to one centimeter wide and is pink, purple, or less often white, and each tepal has a dark-colored base. The tepals are variable in shape, from narrow and very pointy to spade-shaped. Anthers are purple; pollen yellow.[6][7] Flowers bloom May to August.[8]
See also

California chaparral and woodlands


The Plant List
Jepson Manual Treatment — Allium campanulatum
USDA Plants Profile: Allium campanulatum (dusky onion)
Flora of North America v 26 p 256
Allium campanulatum — U.C. Photo gallery
Watson, Sereno. 1879. Proceedings of the American Academy of Arts and Sciences 14: 231.
"Lady Bird Johnson Wildflower Center - The University of Texas at Austin".

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