Distribution: Occurring west of the Cascades crest in Washington; western Washington to the Willamette Valley in Oregon.
Habitat: Wet prairie, thickets, and shores, generally occurring near where both parent species occur.
Flowers: May-July
Origin: Introduced
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Crataegus ×cogswellii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Crataegus ×cogswellii checklist entry
OregonFlora: Crataegus ×cogswellii information
E-Flora BC: Crataegus ×cogswellii atlas page
CalPhotos: Crataegus ×cogswellii photos