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Webster 1913 Edition

Adj.

[See

(Bot.)

Of or pertaining to a natural order of apetalous plants (

Polygonaceæ

), 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.

polygonaceous ‎(comparative more polygonaceous, superlative most polygonaceous)

(botany) Of or pertaining to a family of apetalous plants, Polygonaceae, of which the knotweeds of the genus Polygonum are the type, and which includes also the docks of the genus Rumex, the buckwheat, rhubarb, sea grape of the genus Coccoloba, and several other genera.