Hypertext Webster Gateway: "Polygonum"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Polygonaceous \Pol`y*go*na"ceous\, a. [See {Polygonum}.] (Bot.)
Of or pertaining to a natural order of apetalous plants
({Polygonace[ae]}), of which the knotweeds (species of
{Polygonum}) are the type, and which includes also the docks
({Rumex}), the buckwheat, rhubarb, sea grape ({Coccoloba}),
and several other genera.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From WordNet (r) 1.7 (wn)
Polygonum
n : diverse genus of herbs or woody subshrubs of north temperate
regions [syn: {Polygonum}, {genus Polygonum}]
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