Distribution: Occurring chiefly west of the Cascades crest along the southern border of Washington; British Columbia to California.
Habitat: Fields, roadsides, ditches, and other disturbed open areas.
Flowers: May-June
Origin: Introduced
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies
[none provided]
PNW Herbaria: Specimen records of Lathyrus sphaericus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Lathyrus sphaericus checklist entry
OregonFlora: Lathyrus sphaericus information
E-Flora BC: Lathyrus sphaericus atlas page
CalPhotos: Lathyrus sphaericus photos