Distribution: Occurring on both sides of the Cascades crest in Washington; disjunct in southeast Alaska, otherwise southern British Columbia to California, east to Montana.
Habitat: Thickets, grasslands, riparian zones, shores, and meadows, from lowl to middle elevations in the mountains.
Flowers: April-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Crataegus gaylussacia in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Crataegus gaylussacia checklist entry
OregonFlora: Crataegus gaylussacia information
E-Flora BC: Crataegus gaylussacia atlas page
CalPhotos: Crataegus gaylussacia photos