Distribution: Occurring east of the Cascades crest in Washington; central Washington to southern Oregon and southwestern Idaho.
Habitat: Lithosol and barren, gravelly soils in the shrub-steppe.
Flowers: April-May
Origin: Native
Conservation Status: Not of concern
Scapose perennials from ovoid bulbs, usually solitary, outer coats brownish, without a network pattern.
Leaves 2, much longer than the scape, concave-convex or flattened, narrow, tardily deciduous; scape nearly terete, somewhat ridged, up to 1 dm. tall.
Umbel several- to many-flowered, pedicels 1-3 times as long as the tepals; tepals 5-7 mm. long, lanceolate, pointed, white or pinkish with greenish or reddish midribs; stamens 6, slightly exerted; anthers dark, purplish-brown or reddish.
Capsule 3-celled and 3-lobed, without a crest.
Publication: Proc. Amer. Acad. Arts. 14: 233. 1879.
PNW Herbaria: Specimen records of Allium macrum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Allium macrum checklist entry.
E-Flora BC: Allium macrum atlas page.
CalPhotos: Allium macrum photos.
USDA Plants: Allium macrum information.
