Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to northeastern Oregon, east to the Rocky Mountains, and further east across the U.S. and Canada to the Atlantic Coast.
Habitat: Thickets, riparian zones, and pastures.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Crataegus macracantha in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Crataegus macracantha checklist entry
OregonFlora: Crataegus macracantha information
E-Flora BC: Crataegus macracantha atlas page
CalPhotos: Crataegus macracantha photos