Menyanthaceae
Buck-Bean Family
3 genera
3 species
1 subspecies and varieties
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Menyanthes trifoliatabuck-bean
Distribution: Widely distributed throughout Washington on both sides of the Cascades; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Bogs, marshes, ponds and lakes in shallow water, from low to middle elevations in the mountains.
Origin: Native
Flowers: May-August
Nephrophyllidium crista-gallideer cabbage, deer-cabbage
Origin: Native
Nymphoides peltatayellow floatingheart
Distribution: Introduced as an ornamental, occasionally escaping in the Pacific Northswest.
Habitat: Ponds or sluggish streams.
Origin: Introduced
Flowers: June-September