Distribution: Near the Columbia River in Washington; Washington south to north-central Oregon.
Habitat: Sand and gravel near the river to rocky, even lithosol benches.
Flowers: April-May
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies, hummingbirds
Scapose perennial from ovoid bulbs, solitary or clustered, outer coats grayish or brownish, without a network pattern.
Leaves 2, flat, recurved, much longer than the scape, and with it breaking off at the ground at maturity; scape flattened and 2-edged; bracts 2, ovate, purple.
Umbel few- to many-flowered, the pedicels shorter than the tepals; tepals 7-12 mm. long, oblong to lanceolate, white to pale pink with pink mid-nerves; stamens 6, about 1/3 the length of the tepals; anthers reddish; stigma capitate, entire.
Capsule 3-celled, crested with 3 low processes.
PNW Herbaria: Specimen records of Allium robinsonii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Allium robinsonii checklist entry
OregonFlora: Allium robinsonii information
E-Flora BC: Allium robinsonii atlas page
CalPhotos: Allium robinsonii photos