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polygonum

Pronunciation: /pəˈlɪg(ə)nəm/
Definition of polygonum

noun

  • a plant of a genus that includes knotgrass and knotweed, some of which are weeds and some are garden ornamentals.
    • Genus Polygonum, family Polygonaceae

Origin:

modern Latin, from Greek polu- 'many' + gonu 'knee, joint' (because of the swollen joints sheathed by stipules)

polygonum in other Oxford dictionaries

Definition of polygonum in the US English dictionary

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