Distribution: Occurring west of the Cascades crest along the Puget Sound and outer coast in Washington; Alaska to California; also along the Atlantic Coast.
Habitat: Sandy beaches, dunes, and headlands along the coast.
Flowers: May-September
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies
[none provided]
PNW Herbaria: Specimen records of Lathyrus japonicus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Lathyrus japonicus checklist entry
OregonFlora: Lathyrus japonicus information
E-Flora BC: Lathyrus japonicus atlas page
CalPhotos: Lathyrus japonicus photos