Polygonum

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Polygonum \Po*lyg"o*num\, n. [NL., fr. Gr. ? a kind of plant;
     poly`s many + go`ny the knee, a joint of a plant. So called
     in allusion to the numerous joints.] (Bot.)
     A genus of plants embracing a large number of species,
     including bistort, knotweed, smartweed, etc.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  Polygonum
       n : diverse genus of herbs or woody subshrubs of north temperate
           regions [syn: {genus Polygonum}]