Distribution: Widely distributed throughout Washington; British Columbia south to Oregon, east to Colorado.
Habitat: Sagebrush slopes to near timberline in the mountains, often blooming near snow fields.
Flowers: March-August
Origin: Native
Conservation Status: Not of concern
Herbaceous, scapose perennial from a deep-seated corm, the scape 1-2 dm. tall.
Leaves 2, basal, not mottled, oblong-elliptic, 10-20 cm. long, narrowed to short, broad petioles.
Flowers 1-5 in a loose raceme, nodding; tepals 6, distinct, lanceolate, cream to golden, 2.5-3.5 cm. long, reflexed; filaments 6, white, linear; anthers white or yellow to red; style slender, stigma thick, 1-2 mm. long.
Capsule club-shaped, 3-6 cm. long.
PNW Herbaria: Specimen records of Erythronium grandiflorum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Erythronium grandiflorum checklist entry.
E-Flora BC: Erythronium grandiflorum atlas page.
CalPhotos: Erythronium grandiflorum photos.
USDA Plants: Erythronium grandiflorum information.