Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California; also in the southeastern U.S.
Habitat: Pastures, prairies, roadsides, lawns, fields, and other open disturbed areas at low elevations.
Flowers: April-June
Origin: Introduced from Europe
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Trifolium subterraneum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Trifolium subterraneum checklist entry.
E-Flora BC: Trifolium subterraneum atlas page.
CalPhotos: Trifolium subterraneum photos.
USDA Plants: Trifolium subterraneum information.