Distribution: Occurring on both sides of the Cascades crest in Washington; southwestern British Columbia to Baja California, east to Idaho, Utah, and Nevada.
Habitat: Coastal bluffs and prairies, moister areas of shrub-steppe, and mountain meadows.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Glabrous perennial herbs from an onion-like bulb, the simple stem 2-5 dm. tall.
Leaves mostly basal, linear, keeled, 1-3 dm. long and 3-6 mm. broad; cauline leaves strongly reduced upward.
Inflorescence a raceme (but sometimes the raceme branched at the base) up to 1.5 dm. long, the flowers all perfect; perianth white to cream-colored, bell-shaped; tepals 6, unequal, the outer 4.5-5 mm. long, short-clawed, the inner about 0.5 mm. longer with a narrower, slightly longer claw; the gland at the base of each tepal yellowish-green, broader than long; stamens 6, about equal to the tepals; styles 3, distinct, 2-3 mm. long.
Capsule 8-15 mm. long.
Zigadenus diegoensis Davidson
Zigadenus salinus A. Nelson
Zigadenus venenosus S. Watson var. ambiguus M.E. Jones
Zigadenus venenosus S. Watson var. venenosus [FNA26, HC]
PNW Herbaria: Specimen records of Toxicoscordion venenosum var. venenosum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Toxicoscordion venenosum var. venenosum checklist entry
OregonFlora: Toxicoscordion venenosum var. venenosum information
E-Flora BC: Toxicoscordion venenosum var. venenosum atlas page
CalPhotos: Toxicoscordion venenosum var. venenosum photos
