Distribution: Known from Okanogan County in Washington; Washington and Montana, also in eastern North America.
Flowers: May-July
Origin: Introduced from Eurasia
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Lathyrus tuberosus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Lathyrus tuberosus checklist entry
OregonFlora: Lathyrus tuberosus information
E-Flora BC: Lathyrus tuberosus atlas page
CalPhotos: Lathyrus tuberosus photos