Allium douglasii
| Douglas onion | |
|---|---|
| |
| Allium douglasii in Lincoln County, Washington, US | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Amaryllidaceae |
| Subfamily: | Allioideae |
| Genus: | Allium |
| Species: | A. douglasii
|
| Binomial name | |
| Allium douglasii Hook.
| |
| Synonyms | |
Allium douglasii, the Douglas onion, is a plant species native to northeastern Oregon, eastern Washington, and northern Idaho. It grows in shallow soils at elevations of 400–1,300 m (1,300–4,300 ft).[1][2]
Allium douglasii produces egg-shaped bulbs up to 3 cm (1+1⁄4 in) long. Scapes are round in cross-section, up to 40 cm (16 in) tall. Flowers are up to 10 mm (3⁄8 in) across; tepals pink or purple with green midribs; anthers blue; pollen white or light gray.[1][3][4][5] Two grooved leaves usually remain during the flowering stage.[6]
References
[edit]- ^ a b Flora of North America Editorial Committee (ed.). "Allium douglasii". Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ "Allium douglasii". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
- ^ Hooker, William Jackson. 1839. Flora Boreali-Americana 2: 184, pl. 197
- ^ Robinson, Benjamin Lincoln, & Seaton, Henry Eliason. 1893. Botanical Gazette 18(6): 237–238.
- ^ 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.
- ^ Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 76. ISBN 0-87842-280-3. OCLC 25708726.
