Definition of buckbean in English:

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Pronunciation: /ˈbəkbēn/


A plant of bogs and shallow water with creeping rhizomes, beanlike leaves that consist of three leaflets, and white or pinkish hairy flowers. Formerly used as a substitute for hops, it is now cultivated as an ornamental aquatic plant. Also called bogbean.
  • Menyanthes trifoliata, family Menyanthaceae
Example sentences
  • In ponds, Sitka sedge often forms dense stands; other common species are bluejoint, buckbean, marsh five-finger, and marsh horsetail.
  • Evelyn reported buckbeans in bloom and she thinks she saw some purple bladderwort as well.
  • When in bloom, buckbean is unlikely to be confused with other Northwest aquatic plants.


Late 16th century: from Flemish bocks boonen 'goat's beans'.

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