1. Polygonaceae; knotweed or smartweed family of plants
Wikipedia definition
2. PolygonaceaePolygonaceae is a family of flowering plants known informally as the "knotweed family" or "smartweed family"— "buckwheat family" in the United States. The name is based on the genus Polygonum and was first used by Antoine Laurent de Jussieu in 1789 in his book, Genera Plantarum. The name refers to the many swollen nodes that the stems of some species have. It is derived from Greek; poly means many and goni means knee or joint. Polygonaceae comprises about 1200 species.
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Other forms
蓼科 【たでか】


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