Vascular Plants - Amaryllidaceae - Allium:
Allium campanulatum
dusky onion, rosy Sierra onion 
Blooms: June - July
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Sensitive

Distribution: In the mountains in eastern Oregon, California dnd Nevada, and on Bethel Ridge, Yakima County, Washington.
Habitat: Dry soils at medium to high elevations.
Species Description:

General: 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: 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.
Flowers: 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.
Fruits: Capsule 3-celled, 6-seeded, conspicuously crested with 6 flattened processes.
Accepted Name:
Allium campanulatum S. Watson
Synonyms:
Allium austinae M. E. Jones
Allium bidwelliae S. Watson
Allium campanulatum S. Wats. var. bidwelliae (S. Watson) Jepson

Treated in Flora of the PNW as:
Allium campanulatum
Additional Resources:

PNW Herbaria Specimens: View list of Allium campanulatum specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Allium campanulatum specimens in the WTU Herbarium database.

Washington Flora Checklist: Allium campanulatum treatment.

E-Flora BC: Allium campanulatum atlas page.

CalPhotos: Allium campanulatum images.

USDA Plants Database: Allium campanulatum.
Additional photographs of Allium campanulatum:
(click on a thumbnail to view larger photo)

Phelps Freeborn, 2004

Phelps Freeborn, 2004

Phelps Freeborn, 2004

Phelps Freeborn, 2004

Phelps Freeborn, 2004

Phelps Freeborn, 2004

Phelps Freeborn, 2004
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Washington Native Plant Society
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