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Allium aaseae in SW Idaho

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 aaseae

Allium aaseae Ownbey, Res. Stud. State Coll. Wash. 18: 38. 1950
Native distribution areas:

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

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

Ownbey, F.M. 1950, Research Studies of the State College of Washington. 18: 38.


USDA, ARS, Germplasm Resources Information Network. Allium aaseae in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: April 19, 201812.
Govaerts, R. et al. 2018. Allium aaseae in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 March 19. Reference page.

Vernacular names
English: South Idaho onion

Allium aaseae, the Southern Idaho onion or Aase's onion, is a plant species endemic to southwestern Idaho. It has been reported from 6 counties: Elmore, Ada, Boise, Gem, Payette and Washington.[1][2][3]

The plant is named for American botanist Hannah Caroline Aase (1883-1980), at one time professor at Washington State University in Pullman.[4]

Allium aaseae grows on sandy and gravelly sites at elevations of 800–1100 m. It has egg-shaped bulbs up to 2 cm in diameter, and pink or white bell-shaped flowers up to 10 mm long.[1][5][6][7][8]

Flora of North America v 26 p 268, Allium aaseae
BONAP (Biota of North America Project) floristic synthesis map, Allium aaseae
Mancuso, M, & RK Moseley. 1991. Field investigation of Allium aaseae (Aase's onion) on the Boise National Forest. Idaho Department of Fish and Game, Boise
Ownbey, M. and H. C. Aase. 1955. Cytotaxonomic studies in Allium. I. The Allium canadense alliance. Research Studies of the State College of Washington, supplement 1: 1–106.
Ownbey, Francis Marion. 1950. Research Studies of the State College of Washington 18(1): 38–39, f. 18.
Cronquist, A.J., A. H. Holmgren, N. H. Holmgren & Reveal. 1977. Vascular Plants of the Intermountain West, U.S.A. 6: 1–584. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.
Hitchcock, C. H., A.J. Cronquist, F. M. Ownbey & J. W. Thompson. 1969. Vascular Cryptogams, Gymnosperms, and Monocotyledons. 1: 1–914. In C. L. Hitchcock Vascular Plants of the Pacific Northwest. University of Washington Press, Seattle.
Smith, JF, & TV Pham. 1996. Genetic diversity of the narrow endemic Allium aaseae (Alliaceae). American Journal of Botany 83:717-726.

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