Page authors: Ben Legler, David Giblin
Trifolium microcephalum
small-head clover

Distribution: Distributed widely throughout Washington; British Columbia to Baja California, east to the Rocky Mountains.

Habitat: Moist meadows, sandy riverbanks and drier hillsides, coastal to mid-elevations in the mountains.

Flowers: April-June

Origin: Native

Conservation Status: Not of concern


Villous annual, the stems 1-7 dm. long, prostrate to erect.


Leaves trifoliate, petiolate; leaflets obovate-oblanceolate, 1.5-2.5 cm. long; stipules ovate to ovate-lanceolate, denticulate, about half as long as the leaflets.


Inflorescence of 10- to 60-flowered, involucrate heads, 5-10 mm. long, on long, axillary peduncles; involucre villous, sometimes exceeding the lower flowers, saucer-shaped, with about 10 entire, shallow, acute lobes; calyx pubescent, the 5 teeth bristle-like, longer than the tube; corolla 4-5 mm. long, white to pinkish


Pod 2-3 mm. long, 1- or 2-seeded, usually rupturing the calyx at maturity.

Accepted Name:
Trifolium microcephalum Pursh
Publication: Fl. Amer. Sept. 2: 478 [1813]. 1814.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Trifolium microcephalum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Trifolium microcephalum checklist entry.

E-Flora BC: Trifolium microcephalum atlas page.

CalPhotos: Trifolium microcephalum photos.

USDA Plants: Trifolium microcephalum information.

30 photographs:
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