Distribution: Known only from Lewis County in Washington; Lewis County, Washington south to Willamette Valley, Oregon.
Habitat: Bluffs, open ground, and moist lowland meadows where undisturbed.
Flowers: May-June
Origin: Native
Conservation Status: Endangered in Washington (WANHP)
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PNW Herbaria: Specimen records of Delphinium leucophaeum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Delphinium leucophaeum checklist entry.
E-Flora BC: Delphinium leucophaeum atlas page.
CalPhotos: Delphinium leucophaeum photos.
USDA Plants: Delphinium leucophaeum information.