Talk:Polygonum

Pigweed or knotgrass or Polygonum is a genus of herbaceous plants in the knotweed family (Polygonaceae). The genus is very common worldwide, particularly in temperate regions.The botanical name Polygonum means "many knees" (from Ancient Greek 'poly' = many and 'gonu' = knee). Consequently, the stem exhibits many nodes, also called knees.Ooorsp[ropn originally the genus Polygonum was taken much more broadly than today, but the genus has been split into knotweed (Persicaria), keel knotweed (Fallopia) and pigweed (Polygonum) --Penarc1 (talk) 16:14, 31 July 2021 (UTC)