Page authors: Don Knoke, David Giblin
Trifolium longipes
long-stalked clover

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.

Habitat: Meadows and valleys, lower mountains to subalpine slopes.

Flowers: May-August

Origin: Native

Conservation Status: Not of concern


Pubescent perennial from a taproot with a branched crown, the stems 5-30 cm. tall, decumbent and often trailing and stoloniferous.


Leaves trifoliate, leaflets narrowly elliptic-lanceolate to oblanceolate, 2-6 cm. long, serrulate to entire; stipules ovate-lanceolate, 1-3 cm. long, lacerate to entire.


Heads terminal on the stems, 20- to 70-flowered, 1.5-3.5 cm. broad, sub-globose; peduncles usually exceeding the leaves; flowers creamy-yellow to purplish, 11-18 mm. long, erect to reflexed; pedicels 1-3 mm. long; calyx hairy, half as long as the corolla, the 5 teeth 2-4 times as long as the tube, awl-shaped, the upper 2 reduced; banner acute, wings acute and narrow, keel acute to rounded.


Pod 1- to 4-seeded.

Accepted Name:
Trifolium longipes Nutt.
Publication: Fl. N. Amer. (Torr. & A. Gray) 1(2): 314. 1838.

Synonyms & Misapplications:
(none provided)
var. longipes – long-stalked clover    Endemic to the Cascades Mountains in Washington.
var. multiovulatum – long-stalked clover    Occurring in the Olympics and Cascades mountains in Washington; Washington to northwest Oregon.
var. multipedunculatum – long-stalked clover    Occurring in the Cascades Mountains in Washington; Washington to California.
Additional Resources:

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

WA Flora Checklist: Trifolium longipes checklist entry.

E-Flora BC: Trifolium longipes atlas page.

CalPhotos: Trifolium longipes photos.

USDA Plants: Trifolium longipes information.

57 photographs:
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