Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Washington, east to Idaho and Montana.
Habitat: Thickets, riparian zones, and grasslands.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Crataegus okennonii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Crataegus okennonii checklist entry
OregonFlora: Crataegus okennonii information
E-Flora BC: Crataegus okennonii atlas page
CalPhotos: Crataegus okennonii photos