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Allium siskiyouense

Classification System: APG IV

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

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

Allium siskiyouense Ownbey ex Traub, Pl. Life 28: 63. 1972.

Allium falcifolium var. demissum Jeps., Fl. Calif. 1: 280. 1921.

Native distribution areas:

Continental: Northern America
Regional: Northwestern U.S.A.
Regional: Southwestern U.S.A.

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

Govaerts, R. et al. 2018. Allium siskiyouense in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 Jul. 25. Reference page.
Hassler, M. 2018. Allium siskiyouense. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Jul. 25. Reference page.
International Plant Names Index. 2018. Allium siskiyouense. Published online. Accessed: Jul. 25 2018.
USDA, ARS, Germplasm Resources Information Network. Allium siskiyouense in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Siskiyou onion

Allium siskiyouense is a North American species of wild onion known by the common name Siskiyou onion. It is native to the Klamath Mountains and nearby ranges of northern California and Oregon.[2] It grows in serpentine and other rocky soil types.[3]

This small onion plant grows from a reddish-brown bulb 1 or 2 cm (1⁄3 or 2⁄3 in) long. It produces a short stem no more than 8 cm (3 in) long and two sickle-shaped leaves which are usually longer. The inflorescence contains up to about 35 flowers, each with dark-veined pink tepals around 1 cm (1⁄3 in) long and sometimes toothed at the tips.[4][5][6]

Kew World Checklist of Selected Plant Families
Biota of North America Program 2013 county distribution map
Calflora taxon report 235, Allium siskiyouense Ownbey, Siskiyou onion
Jepson Manual Treatment
United States Department of Agriculture Plants Profile
Flora of North America

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