Distribution: Occurring east of the Cascades crest in Grant and Douglas counties in Washington.
Habitat: Shallow, vernally-moist soils in low, open areas.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Sensitive in Washington (WANHP)
Pollination: Bumblebees, bees, flies, hummingbirds
Scapose perennial from one or more ovoid bulbs, the inner coats reddish to white, the outer coats gray to brown; with a thin inner membrane showing a distinct network pattern.
Leaves 2, narrow, concave-convex, persisting at maturity, shorter than the scape; scape strongly thickened below the umbel, with a definite constriction between the swollen apex of the scape and the umbel; scape usually 2-3 dm. tall, terete.
Umbel several- to many-flowered, the slender pedicels 2-3 times the length of the tepals; tepals usually 7-8 mm. long, entire, pointed, narrowly lanceolate, usually pink; stamens 6, about as long as the tepals.
Capsule 3-celled.
PNW Herbaria: Specimen records of Allium constrictum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Allium constrictum checklist entry
OregonFlora: Allium constrictum information
E-Flora BC: Allium constrictum atlas page
CalPhotos: Allium constrictum photos