– garden bird's-foot-trefoil
Distribution: Occurring on both sides of the Cascades in Washington; widely distributed throughout most of North America.
Habitat: Mesic to wet areas, typically where disturbed.
– big lotus, big trefoil, large trefoil
Distribution: West of the Cascades in Washington; British Columbia south to California, east to Idaho; east across Canada to Nova Scotia; scattered localities in eastern U.S.
Habitat: Moist to wet disturbed areas, roadsides, abandoned lots, and coastal tidelands.