Polygonaceae

Polygonaceae
Missing image
Illustration_Fallopia_dumetorum0.jpg
Fallopia dumetorum


Fallopia dumetorum - from Thomé
Flora von Deutschland, Österreich und der Schweiz 1885
Scientific classification
Kingdom:Plantae
Division:Magnoliophyta
Class:Magnoliopsida
Order:Caryophyllales
Family:Polygonaceae
Genera

See text

The Polygonaceae, or the Knotweed Family, are a group of dicots including buckwheat, sorrel (but not wood sorrel), rhubarb, and knotgrass. It is named for the shape of the seed; that of rhubarb, for example, has a triangular cross-section.

In the Cronquist system, the Polygonaceae were given their own order, but newer systems treat them as part of the Caryophyllales.

Many knotweeds have ocreas at their stems' nodes. Ocreas is a sheath developed from stipules at the attaching leaves' bases. Some ocreas have mildly hairy fringes.


Species

External link

de:Knöterichgewächse eo:Poligonacoj fr:Polygonaceae nl:Duizendknoopfamile

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