Page author: David Giblin
Trifolium aureum
golden clover, greater hop clover, yellow clover

Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to Montana and Wyoming; also occurring in most of eastern North America.

Habitat: Roadsides, fields, lawns, railways, wastelots, and other disturbed open sites.

Flowers: June-September

Origin: Introduced

Growth Duration: Annual, Biennial

Conservation Status: Not of concern


Pubescent to glabrous annual or biennial usually with several erect or ascending stems 2-5 dm. tall.


Leaves trifoliate, leaflets oblong-elliptic to oblanceolate, 1-3 cm. long, sub-sessile, serrulate 2/3 their length; stipules narrow, 10-18 mm. long, attached to the petiole over half their length, the free portion acuminate.


Inflorescence of 30- to 100-flowered heads, 10-16 mm. thick, on axillary peduncles longer than the leaves; flowers 5-7 mm. long, yellow, pea-like; calyx glabrous, half the length of the corolla, the upper 2 teeth about half as long as the lower 3, the latter slightly longer than the calyx tube; banner flared and spreading, much longer than the wings and keel.


Pod 1-seeded, equal to the attached style.

Accepted Name:
Trifolium aureum Pollich
Publication: Hist. Pl. Palat. 2: 344 1777.

Synonyms & Misapplications:
Trifolium agrarium L., rejected name [HC]
Additional Resources:

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

WA Flora Checklist: Trifolium aureum checklist entry.

E-Flora BC: Trifolium aureum atlas page.

CalPhotos: Trifolium aureum photos.

USDA Plants: Trifolium aureum information.

25 photographs:
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