Page authors: Don Knoke, David Giblin
Crataegus monogyna var. monogyna
common hawthorn, English hawthorn, one-seeded hawthorn

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 Eurasia and North Africa

Growth Duration: Perennial

Conservation Status: Not of concern


Glabrous, thorny, deciduous small shrub or tree, 2-10 m. tall. Thorns continue to grow as short thorn-tipped branches with leaves budding from the sides of the thorns.


Leaves ovate, deeply 3-lobed more than halfway to the midrib, 2.5-5 cm. long and nearly as broad.


Inflorescence a broad, dense, flat-topped cluster; flowers 8-15 mm. wide, the petals white; style 1.


Fruit a crimson berry, globose, 7-10 mm. in diameter, with single large seed.

Accepted Name:
Crataegus monogyna Jacq. var. monogyna
Publication: Fl. Austriac. 3: 50, pl. 292, f.1. 1775.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Crataegus monogyna var. monogyna in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Crataegus monogyna var. monogyna checklist entry

OregonFlora: Crataegus monogyna var. monogyna information

E-Flora BC: Crataegus monogyna var. monogyna atlas page

CalPhotos: Crataegus monogyna var. monogyna photos

16 photographs:
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