Page authors: Don Knoke, David Giblin
Allium dictuon
Blue Mountain onion

Distribution: Occurring east of the Cascades crest in Washington, where endemic to Columbia County.

Habitat: Open, fairly dry, rocky areas at low to middle elevations.

Flowers: June-July

Origin: Native

Conservation Status: Threatened in Washington (WANHP)


Scapose perennial from an obliquely ovoid bulb, with new bulbs developing outside the bulb coat; outer coat pale brown with a conspicuous, irregular, oblong or rhomboidal network pattern.


Leaves 2, linear, nearly flat, much shorter that the terete scape.


Umbel many-flowered, the pedicel 1-2 times as long as the tepals; tepals 6, 10-15 mm. long, bright pink, narrowly lanceolate, tapered and pointed, denticulate; stamens 6, about 2/3 the length of the tepals.


Capsule 3-celled, without a crest.

Accepted Name:
Allium dictuon H. St. John
Publication: Proc. Biol. Soc. Wash. 50: 3, fig. 1. 1937.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Allium dictuon checklist entry.

E-Flora BC: Allium dictuon atlas page.

CalPhotos: Allium dictuon photos.

USDA Plants: Allium dictuon information.

1 photographs:
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