Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to western Montana and Nevada.
Habitat: Wet meadows and seeps to fairly dry, sandy soil, at moderate elevations.
Flowers: May-July
Origin: Native
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies, flies
[none provided]
PNW Herbaria: Specimen records of Trifolium cyathiferum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Trifolium cyathiferum checklist entry
OregonFlora: Trifolium cyathiferum information
E-Flora BC: Trifolium cyathiferum atlas page
CalPhotos: Trifolium cyathiferum photos