D defs.my
Entry 1 sense Webster, 1913

Polygonum

· Po·lyg·o·num · IPA
01 n. A genus of plants embracing a large number of species, including bistort, knotweed, smartweed, etc.
  1. 1.
    A genus of plants embracing a large number of species, including bistort, knotweed, smartweed, etc.(Bot.)