Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California, east to Montana, also in the Great Lakes region and eastern North America.
Habitat: Roadsides, fields, pastures, meadows, thickets, and forest edge and understory at low elevations, often associated with disturbance. Seeds readily dispersed by birds.
Flowers: April-June
Origin: Introduced from Europe
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
Publication: Fl. Austriac. (Jacquin) 3: 50, t. 292, f. 1. 1775.
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var. monogyna – common hawthorn, English hawthorn, one-seeded hawthorn
Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California, east to Montana, also in the Great Lakes region and eastern North America.
PNW Herbaria: Specimen records of Crataegus monogyna in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Crataegus monogyna checklist entry
OregonFlora: Crataegus monogyna information
E-Flora BC: Crataegus monogyna atlas page
CalPhotos: Crataegus monogyna photos
