Polygonaceae

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Polygonaceae
Polygonum persicaria bgiu.jpg
Polygonum persicaria
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Polygonaceae

Polygonaceae is a family of flowering plants are herbs, shrubs, or rarely trees comprising about 30 genera and 1,000 species. The leaves are simple, alternate or rarely opposite, and usually stipulate. Some well known members include buckwheat (Fagopyrum), sorrel (Rumex), rhubarb (Rheum), and knotweed (Polygonum).