Page authors: Don Knoke, David Giblin
Allium campanulatum
rosy Sierra onion

Distribution: Occurring east of the Cascades crest where known from Yakima County in Washington; Washington to California, east to Nevada.

Habitat: Dry soils at medium to high elevations.

Flowers: June-July

Origin: Native

Conservation Status: Threatened in Washington (WANHP)


Scapose perennial herbs from bulbs, the bulbs ovoid, usually producing from the base a cluster of short-stalked bulblets, the outer coats grayish or brownish.


Leaves usually 2, concave-convex, less than 5 mm. broad, about equal to the scape, withering at flowering; scape usually less than 1.5 dm. tall, cylindrical, usually solitary.


Umbel few- to many-flowered, the pedicels up to 4 times the length of the tepals, becoming strongly deflexed in fruit; tepals usually 7-8 mm. long, ovate to narrowly lanceolate, acuminate, entire, purplish to pinkish or white, the tips with a strong keel; stamens 6, shorter than the tepals; stigma capitate.


Capsule 3-celled, 6-seeded, conspicuously crested with 6 flattened processes.

Accepted Name:
Allium campanulatum S. Watson
Publication: Proc. Amer. Acad. Arts. 14: 231. 1879.

Synonyms & Misapplications:
Allium austinae M.E. Jones
Allium bidwelliae S. Watson
Allium campanulatum S. Watson var. bidwelliae (S. Watson) Jeps.
Additional Resources:

PNW Herbaria: Specimen records of Allium campanulatum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Allium campanulatum checklist entry.

E-Flora BC: Allium campanulatum atlas page.

CalPhotos: Allium campanulatum photos.

USDA Plants: Allium campanulatum information.

7 photographs:
Group by