Children (17 direct children, 20 direct and indirect children):
Reynoutria ×bohemica
Reynoutria bohemica
Reynoutria spaethii
Reynoutria weyrichii
Reynoutria fargesii
Reynoutria hachidyoensis
Reynoutria mizushimae
Reynoutria japonica
(tree size 2)
Japanese knotweed
Reynoutria sachalinensis
Giant knotweed
Reynoutria multiflora
(tree size 1)
Reynoutria aubertii
Reynoutria campanulata
Reynoutria lichiangensis
Reynoutria polystachya
Reynoutria uzenensis
Reynoutria ciliinervis
Reynoutria compacta
Reynoutria ×conollyana