Polygonum

polygonum Translingual thumb|Polygonum aviculare species (common knotgrass) Etymology mul :bor grc:πολύγονον 1 mul grc πολύγονον knotweed from grc πολύς many + grc γόνυ knee (though grc γόνος offspring has been suggested- the "knots" in "knotweed" are enlarged joints like knees, and it's certainly a prolific weed, so either derivation is plausible). Proper noun 1 n genus family Polygonaceae including the various knotweeds, smartweeds, and bistort Usage notes Sensu lato has frequently included the genera now in the tribe Persicarieae tribe as Section (botany) sections, that is Persicaria genus, Bistorta genus, Cephalophilon genus and Koenigia genus (which last has also been delimited as Rubrivena genus and Aconogonon genus). Hypernyms genus , eudicots clade, core eudicots clade clades; Caryophyllales order order; Polygonaceae family family; Polygonoideae subfamily subfamily; Polygoneae tribe tribe; Polygoninae subtribe subtribe Hyponyms genus Polygonum aviculare species (common knotgrass) type species; for other species see 1 1 and 1 Coordinate terms genus in Polygoneae Atraphaxis genus, Duma genus 1, Fallopia genus, Knorringia genus, Muehlenbeckia genus, Reynoutria genus genera Derived terms Eriogonum genus Polygonaceae family Polygonella genus References Hyam R. Pankhurst R.J. 1995 Plants and their names : a concise dictionary Oxford Oxford University Press 978-0-19-866189-4 p. 404. Coombes Allen J. 1994 Dictionary of Plant Names London Hamlyn Books 978-0-600-58187-1 p. 148. la Martinius Matthias 1655 Lexicon Philologicum præcipue etymologicum et sacrum T. M. Goetzenius . Polygonum. Mihai Costea François J. Tardif Harold R. Hinds 1982 onwards Polygonum http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=126398 Flora of North America Editorial Committee Flora of North America (online) eFloras.org 1 1 1 mul Buckwheat family plants