Polygonaceae Juss.

Knotweed Family

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Plants > Angiosperms > Polygonaceae

Kingdom: Plantae
Clade: Angiosperms
Class: Dicots
Order: Caryophyllales
Family: Polygonaceae

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​The Polygonaceae are a family of flowering plants known informally as the knotweed family. The name refers to the many swollen nodes the stems of some species have. It is derived from Greek; poly means many and goni means knee or joint. Wikipedia

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Genera: Antigonon, Persicaria

Antigonon leptopu

Persicaria chinensis

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References: 
Wikipedia