Page authors: Don Knoke, David Giblin
Trifolium ciliolatum
foothill clover, tree clover

Distribution: Occurring east of the Cascades crest in south-central Washington; south-central Washington to California.

Habitat: Wet meadows to rather dry, sandy soil.

Flowers: April-June

Origin: Native

Conservation Status: Not of concern


Mostly glabrous annual with several decumbent to erect stems 1.5-5 dm. long.


Leaves alternate, trifoliate; stipules 1-2.5 cm. long, with entire, acuminate tips; leaflets oblong-elliptic to oblanceolate or broader, 1-3.5 cm. long, finely denticulate the entire length, the teeth needle-like.


Inflorescence of 10- to 50-flowered heads, the heads axillary as well as terminal, 1-2 cm. long, subglobose, without an involucre; flowers white to purplish, 6-12 mm. long, erect but becoming reflexed as the pedicles elongate to up to 6 mm.; calyx glabrous, about equal to the corolla, the tube 10-veined, the 5 teeth fringed, 2-3 times as long as the tube, the upper 2 much the longest.


Pod 1-seeded

Accepted Name:
Trifolium ciliolatum Benth.
Publication: Pl. Hartw. 304 [1849]. 1848.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Trifolium ciliolatum checklist entry.

E-Flora BC: Trifolium ciliolatum atlas page.

CalPhotos: Trifolium ciliolatum photos.

USDA Plants: Trifolium ciliolatum information.

11 photographs:
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