Plants in the Polygonum genus
P
- P. alaskanum (Alaska Wild Rhubarb)
- P. alpinum (Alpine Knotweed)
- P. amphibium (Willow Grass)
- P. arenastrum (Small-Leaved Knotweed)
- P. aviculare (Knotweed)
- P. barbatum (Joint Weed)
- P. bistorta (Bistort)
- P. bistortoides (American Bistort)
- P. bungeanum
- P. coccineum (Water Smartweed)
- P. conspicuum
- P. convolvulus (Black Bindweed)
- P. divaricatum
- P. douglasii (Knotweed)
- P. dumetorum
- P. equisetiforme
- P. fugax
P cont.
- P. hydropiper (Smartweed)
- P. lapathifolium (Curlytop Knotweed)
- P. limosum
- P. longisetum
- P. maackianum
- P. manshuriense (Asian Bistort)
- P. microcephalum
- P. minus
- P. molle
- P. multiflorum (He Shou Wu)
- P. nepalense
- P. omerostromum
- P. orientale (Prince's Feather)
- P. pensylvanicum (Pennsylvania Smartweed)
- P. perfoliatum
- P. persicaria (Red Leg)
- P. polymorphum
P cont.
- P. polystachyum (Himalayan Knotweed)
- P. pubescens
- P. rigidum
- P. rumicifolium
- P. runcinatum
- P. sachalinense (Giant Knotweed)
- P. sagittatum (False Buckwheat)
- P. salicifolium
- P. sibiricum
- P. taquettii
- P. thunbergii
- P. tinctorium
- P. truellum
- P. virginianum (Jumpseed)
- P. viviparum (Alpine Bistort)
- P. weyrichii
- ... further results