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Allium cratericola

Classification System: APG IV

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

Familia: Amaryllidaceae
Subfamilia: Allioideae
Tribus: Allieae
Genus: Allium
Species: Allium cratericola

Allium cratericola Eastw., 1934

Allium parvum var. brucae M.E.Jones
Allium parvum var. jacintense Munz

Native distribution areas:

Continental: Northern America
Regional: Southwestern USA

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

Eastwood, A., Leafl. W. Bot. 1: 132 1934.
USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 ( Data compiled from various sources by Mark W. Skinner. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
International Plant Names Index. 2017. Allium cratericola. Published online. Accessed: Sep-03 2017.
Govaerts, R. et al. 2017. Allium cratericola 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: cascade onion

Allium cratericola is a species of wild onion known by the common name Cascade onion. It is endemic to California, where is an uncommon member of the flora in several of the state's mountain ranges, including the northern and southern California Coast Ranges, the western Transverse Ranges, Klamath Mountains, and the Sierra Nevada foothills. Its range covers much of the state, from Riverside County to Siskiyou County.[4][5][6]

Allium cratericola grows a short stem up to 10 centimetres (4 in) tall from a brown-coated oval-shaped bulb. There are one or two long, pointed leaves up to four times the length of the stem. The umbel contains up to 20 flowers clustered densely together. Each flower is bell-shaped, up to 15 mm (5⁄8 in) across; tepals white, pink or purplish with a dark purple-brown midvein; anthers and pollen are yellow.[4][7][8][9]

"NatureServe Explorer - Allium cratericola". NatureServe Explorer Allium cratericola. NatureServe. 2022-05-30. Retrieved 30 May 2022.
The Plant List
Flora of North America Editorial Committee (ed.). "Allium cratericola". Flora of North America North of Mexico (FNA). New York and Oxford – via, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
"Allium cratericola". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
USDA, NRCS (n.d.). "Allium cratericola". The PLANTS Database ( Greensboro, North Carolina: National Plant Data Team.
Eastwood, Alice (1934). "New Species in Liliaceae". Leaflets of Western Botany. 1 (12): 132.
Allium cratericola in the CalPhotos photo database, University of California, Berkeley
Hickman, J. C. (1993). "Allium cratericola". The Jepson Manual: Higher Plants of California. Berkeley: University of California Press. pp. 1–1400.

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