Children (573 direct children, 765 direct and indirect children):
Polygonum aviculare
(tree size 18)
Knotgrass
Polygonum bidwelliae
Bidwell's knotweed
Polygonum erectum
(tree size 1)
Erect knotweed
Polygonum tinctorium
Polygonum chinense
(tree size 5)
Chinese knotweed
Polygonum idaeum
Polygonum sagittatum
Arrowleaf tearthumb
Polygonum davisiae
Davis' knotweed
Polygonum polystachyum
(tree size 4)
Cultivated knotweed
Polygonum pensylvanicum
Pennsylvania smartweed
Polygonum sibiricum
(tree size 2)
Polygonum cognatum
(tree size 3)
Polygonum bistortoides
(tree size 1)
American bistort
Polygonum maritimum
Polygonum oxyspermum
(tree size 3)
Polygonum punctatum
(tree size 11)
Dotted smartweed
Polygonum californicum
California knotweed
Polygonum hydropiper
(tree size 3)
Marshpepper knotweed
Polygonum coccineum
(tree size 1)
Polygonum arenastrum
(tree size 3)
Oval-leaf knotweed
Polygonum weyrichii
Polygonum nepalense
(tree size 1)
Nepalese smartweed
Polygonum thunbergii
Persicaria thunbergii
Polygonum cymosum
Polygonum acuminatum
(tree size 1)
Tapertip smartweed
Polygonum douglasii
(tree size 8)
Douglas' knotweed
Polygonum affine
Polygonum amplexicaule
(tree size 3)
Polygonum albanicum
Polygonum cespitosum
(tree size 1)
Oriental lady's thumb
Polygonum bolanderi
Bolander's knotweed
Polygonum hickmanii
Hickman's knotweed
Polygonum marinense
Marin knotweed
Polygonum minimum
Broadleaf knotweed
Polygonum paronychia
Beach knotweed
Polygonum parryi
Parry's knotweed
Polygonum phytolaccifolium
Poke knotweed
Polygonum polygaloides
(tree size 4)
Milkwort knotweed
Polygonum ramosissimum
(tree size 4)
Bushy knotweed
Polygonum shastense
Shasta knotweed
Polygonum aubertii
Polygonum posumbu
Polygonum molliiforme
Polygonum lichiangense
Polygonum pulchrum
Polygonum vacciniifolium
Polygonum plebeium
(tree size 1)
Common knotweed
Polygonum dichotomum
(tree size 3)
Polygonum pubescens
Polygonum ochotense
Polygonum glabrum
Denseflower knotweed
Polygonum glaciale
(tree size 2)
Polygonum songaricum
Polygonum senticosum
(tree size 1)
Polygonum emodi
(tree size 2)
Polygonum huananense
Polygonum cathayanum
Polygonum divaricatum
(tree size 1)
Polygonum tortuosum
(tree size 2)
Polygonum biconvexum
Polygonum intramongolicum
Polygonum foliosum
(tree size 2)
Polygonum milletii
Polygonum subscaposum
Polygonum darrisii
Polygonum forrestii
Polygonum pacificum
Polygonum platyphyllum
Polygonum delicatulum
Polygonum microcephalum
(tree size 2)
Polygonum muricatum
Polygonum rigidum
Polygonum patulum
Bellard's smartweed
Polygonum argyrocoleon
Silversheath knotweed
Polygonum strindbergii
Polygonum popovii
Polygonum jucundum
(tree size 1)
Polygonum palmatum
Polygonum suffultum
(tree size 3)
Polygonum schischkinii
Polygonum lapathifolium
(tree size 7)
Curlytop knotweed
Polygonum humifusum
(tree size 2)
Polygonum perfoliatum
Asiatic tearthumb
Polygonum acerosum
Polygonum pinetorum
Polygonum sparsipilosum
(tree size 2)
Polygonum bungeanum
Bunge's smartweed
Polygonum conspicuum
Polygonum barbatum
(tree size 1)
Polygonum limicola
Polygonum honanense
Polygonum calcatum
Polygonum nodosum
Polygonum carneum
Polygonum bistorta
(tree size 3)
Meadow bistort
Polygonum glabratum
Polygonum ellipticum
Polygonum purpuratum
Polygonum glaucum
Seaside knotweed
Polygonum acetosum
Polygonum assamicum
Polygonum umbrosum
Polygonum molle
(tree size 3)
Polygonum praetermissum
Polygonum campanulatum
(tree size 3)
Bellflower smartweed
Polygonum filicaule
Polygonum taquetii
Polygonum wallichii
Polygonum coriarium
Polygonum sinomontanum
Polygonum polycnemoides
Manyleg knotweed
Polygonum ocreatum
Polygonum cyanandrum
Polygonum longisetum
(tree size 2)
Polygonum limosum
Polygonum tibeticum
Polygonum paronychioides
Knotweed
Polygonum paralimicola
Polygonum maackianum
Polygonum hastatosagittatum
Polygonum hookeri
Polygonum suffultoides
Polygonum nummularifolium
Polygonum viscosum
Polygonum micranthum
Polygonum runcinatum
(tree size 2)
Polygonum purpureonervosum
Polygonum fertile
Polygonum humile
Polygonum dissitiflorum
Hastate-leaf smartweed
Polygonum coriaceum
Polygonum paleaceum
(tree size 2)
Polygonum alopecuroides
Polygonum pilushanense
Polygonum japonicum
(tree size 3)
Polygonum calostachyum
Polygonum manshuriense
Polygonum lanatum
Polygonum scabrum
(tree size 1)
Polygonum ajanense
Polygonum criopolitanum
Polygonum viscoferum
Polygonum strigosum
(tree size 2)
Polygonum angustifolium
Polygonum asiaticum
Polygonum altissimum
Polygonum elegans
Polygonum afghanicum
Polygonum terrestre
Polygonum amgense
Polygonum amurense
Polygonum brittingeri
Polygonum caducifolium
Polygonum arenarium
(tree size 2)
European knotweed
Polygonum careyi
Carey's smartweed
Polygonum gussonei
Polygonum junceum
Polygonum kawagoeanum
Polygonum jurii
Polygonum baicalense
Polygonum chrtekii
Polygonum hissaricum
Polygonum krascheninnikovii
Polygonum panjutinii
Polygonum abbreviatum
Polygonum bargusinense
Polygonum bellardii
(tree size 1)
Narrowleaf knotweed
Polygonum lacerum
Fringed knotweed
Polygonum papillosum
Polygonum achoreum
Leathery knotweed
Polygonum lencoranicum
Polygonum recumbens
(tree size 1)
Polygonum myrtillifolium
Polygonum relictum
Polygonum tenoreanum
Polygonum paraguayense
Polygonum shiheziense
Polygonum boreale
Polygonum czukavinae
Polygonum norvegicum
Polygonum tenue
(tree size 1)
Pleatleaf knotweed
Polygonum bornmuelleri
Polygonum littorale
Polygonum rigidulum
Polygonum huichunense
Polygonum bowenkampii
Polygonum nuttallii
Polygonum lonchophyllum
Polygonum thymifolium
Polygonum brasiliense
Polygonum densiflorum
Polygonum spergulariiforme
Polygonum ochreatum
Polygonum longiocreatum
Polygonum riparium
Polygonum peruvianum
Polygonum stelligerum
Polygonum longipes
Polygonum trigonocarpum
Polygonum hystriculum
Polygonum striatulum
(tree size 1)
Striped knotweed
Polygonum turgidum
Polygonum romanum
(tree size 1)
Polygonum tripterocarpum
Polygonum icaricum
Polygonum majus
Polygonum stypticum
Polygonum paniculatum
Polygonum rottboellioides
Polygonum undulatum
Polygonum subauriculatum
Polygonum imeretinum
Polygonum rubricaule
Polygonum subsericeum
Polygonum inflexum
Polygonum dshawachischwilii
Polygonum urumqiense
Polygonum rurivagum
Polygonum salsugineum
Polygonum sanguinaria
Polygonum utahensis
Polygonum utahense
Polygonum effusum
Polygonum scoparium
Polygonum sericeum
Polygonum serpyllaceum
Polygonum vladimiri
Polygonum vvedenskyi
Polygonum ensigerum
Polygonum equisetiforme
Horse-tail knotweed
Polygonum zaravschanicum
Polygonum floribundum
Polygonum franchetii
Polygonum galapagense
Polygonum griffithii
Polygonum sect. knorringia
Polygonum sect. aconogonon
Polygonum sect. homalocladium
Polygonum aleppicum
Polygonum libani
Polygonum niloticum
Polygonum fowleri
(tree size 2)
Fowler's knotweed
Polygonum heterosepalum
Oddsepal knotweed
Polygonum brachytrichum
Polygonum austiniae
Polygonum cedrorum
Polygonum schistosum
Polygonum fibrilliferum
Polygonum sylvaticum
Polygonum setosum
Polygonum mesembricum
Polygonum balansae
(tree size 5)
Polygonum tachengense
Polygonum ilanense
Polygonum patuliforme
Polygonum tatewakianum
Polygonum istanbulicum
Polygonum mezianum
Polygonum robertii
Polygonum karacae
Polygonum tenuissimum
Polygonum shuchengense
Polygonum baltistanicum
Polygonum kelloggii
(tree size 2)
Polygonum biaristatum
Polygonum sivasicum
Polygonum minutissimum
Polygonum robynsii
Polygonum corrigioloides
Polygonum afromontanum
Polygonum turkestanicum
Polygonum mirajabii
Polygonum khajeh-jamali
Polygonum borgoicum
Polygonum cretaceum
Polygonum plebejum
Polygonum afyonicum
Polygonum uniflorum
Polygonum snijmaniae
Polygonum kolumense
Polygonum botuliforme
Polygonum volchovense
Polygonum korthalsii
Polygonum podlechii
Polygonum roylei
Polygonum argyrocoleum
Polygonum gabrielae
Polygonum obtusifolium
Polygonum breviarticulatum
Polygonum crispatum
Polygonum ganderbalense
Polygonum ryukyuense
Polygonum leblebicii
Polygonum aridum
Polygonum olivascens
Polygonum cappadocicum
Polygonum arussense
Polygonum salebrosum
Polygonum leptocarpum
Narrowpoint knotweed
Polygonum aschersonianum
Polygonum spinosum
Polygonum cascadense
Cascade knotweed
Polygonum liaotungense
Polygonum damrongianum
Polygonum salicornioides
Polygonum ovczinnikovii
Polygonum diospyrifolium
Polygonum glandulosopilosum
Polygonum cashmirense
Polygonum samsunicum
Polygonum schimperi
Polygonum sumatranum
Polygonum graminifolium
Polygonum ebracteatum
Polygonum ramuliflorum
Polygonum engelmannii
Polygonum sarobiense
Polygonum sawatchense
(tree size 2)
Polygonum palaestinum
Polygonum pteranthum
Polygonum ekimianum
Polygonum subaphyllum
Polygonum glaucescens
Polygonum psammophilum
Polygonum caucanum
Polygonum erythrodes
Polygonum hassanabdalicum
Polygonum fallax
Polygonum hyrcanicum
Polygonum dumosum
Polygonum propinquum
Polygonum praelongum
Polygonum subsagittatum
Polygonum salicifolium
Knotweed
Polygonum hydropiperoides
(tree size 2)
Swamp smartweed
Polygonum capitatum
Pinkhead smartweed
Polygonum minus
(tree size 3)
Pygmy smartweed
Polygonum hermonis
Polygonum macrophyllum
(tree size 2)
Polygonum segetum
Field smartweed
Polygonum pulchellum
Polygonum luzuloides
Polygonum amphibium
(tree size 4)
Water knotweed
Polygonum arifolium
(tree size 1)
Halberdleaf tearthumb
Polygonum articulatum
Polygonum convolvulus
(tree size 1)
Black bindweed
Polygonum fagopyrum
Polygonum frutescens
Polygonum persicaria
(tree size 4)
Spotted ladysthumb
Polygonum scandens
(tree size 3)
Climbing false buckwheat
Polygonum serratum
Polygonum tataricum
Polygonum uvifera
Polygonum virginianum
Jumpseed
Polygonum viviparum
(tree size 4)
Alpine bistort
Polygonum alpinum
(tree size 1)
Alaska wild rhubarb
Polygonum sect. bistorta
Polygonum sect. cephalophilon
Polygonum sect. echinocaulon
Polygonum sect. persicaria
Polygonum sect. polygonum
Polygonum lanigerum
Polygonum senegalense
(tree size 1)
Polygonum polymorphum
(tree size 1)
Polygonum newberryi
Polygonum smallii
Polygonum arianum
Polygonum atraphaxiforme
Polygonum toktogulicum
Polygonum declinatum
Polygonum acutatum
Polygonum caudatum
Polygonum gilesii
Polygonum gracilipes
Polygonum grossii
Polygonum lineare
Polygonum statice
Polygonum urophyllum
Polygonum baldschuanicum
Polygonum ciliinode
Polygonum cilinode
Polygonum cristatum
Polygonum cynanchoides
(tree size 1)
Polygonum dentatoalatum
Polygonum denticulatum
Polygonum dumetorum
Polygonum complexum
Polygonum fruticulosum
Polygonum tamnifolium
Polygonum quadrangulatum
Polygonum volcanicum
Polygonum buchananii
Polygonum arcuatum
Polygonum attenuatum
Polygonum bicorne
Polygonum cliopolitanum
Polygonum decipiens
Polygonum dubium
Polygonum extremiorientale
Polygonum ferrugineum
Polygonum glandulopilosum
Polygonum glomeratum
Polygonum hirsutum
Polygonum hispidum
Polygonum hybridum
Polygonum laxmannii
Polygonum maculatum
Polygonum meisnerianum
(tree size 1)
Polygonum mite
Polygonum poiretii
Polygonum setaceum
Polygonum setosulum
Polygonum sinuatum
Polygonum stagninum
Polygonum tenellum
(tree size 1)
Polygonum rumicifolium
Polygonum fimbriatum
Polygonum polygamum
(tree size 2)
Polygonum buxiforme
Polygonum fusco-ochreatum
(tree size 1)
Polygonum przewalskii
Polygonum caurianum
Polygonum stenophyllum
Polygonum sphaerocephalum
Polygonum raii
(tree size 1)
Polygonum confertiflorum
Polygonum esotericum
Polygonum gallicum
Polygonum hubertii
Polygonum pergracile
Polygonum forbesii
Polygonum multiflorum
Polygonum sachalinense
Polygonum spaethii
Polygonum americanum
Polygonum basiramia
Polygonum delopyrum
Polygonum dentoceras
Polygonum nesomii
Polygonum parksii
Polygonum pinicola
Polygonum smallianum
Polygonum yatagaianum
Polygonum paradoxum
Polygonum sect. duravia
(tree size 2)
Nova scotia knotweed
Hudson bay knotweed
Stout smartweed
Polygonum oxyspernum
Polygonum longicreatum
Polygonum paniculata
Polygonum bohemicum
Polygonum axilaris
Polygonum ephedroides
Polygonum cappadocium
Polygonum caspicum
Polygonum bucharicum
Polygonum reynoutria
(tree size 2)
Polygonum roettleri
Polygonum sphaerostachyum
Polygonum platycladum
Polygonum odoratum
Polygonum dibotrys
Polygonum neglectum
Polygonum compactum
Polygonum atlanticum
Polygonum autumnale
Polygonum bonatii
Polygonum cavaleriei
Polygonum constans
Polygonum esquirolii
Polygonum exsertum
Polygonum fauriei
Polygonum gloriosum
Polygonum guatemalense
Polygonum kinashii
Polygonum komarovii
Polygonum mairei
Polygonum marretii
Polygonum mexicanum
Polygonum neofiliforme
Polygonum pyramidale
Polygonum radicans
Polygonum rubescens
Polygonum stans
Polygonum stevensii
Polygonum tsangschanicum
Polygonum zigzag
Polygonum montereyense
Polygonum fusiforme
Polygonum serotinum
Polygonum deciduum
Polygonum heterophyllum
Polygonum polyneuron
Polygonum rupestre
Polygonum rupestre kar. & kir.
Polygonum agreste
Polygonum agreste sumnev.
Polygonum tenuicaule
Polygonum alatum
Polygonum filiforme
Polygonum adpressum
Polygonum aequale
(tree size 1)
Polygonum cunninghamii
Polygonum diclinum
Polygonum dietrichiae
Polygonum elatius
Polygonum forsteri
Polygonum gunnii
Polygonum kitaibelianum
Polygonum subsessile
(tree size 1)
Polygonum zippelii
Polygonum orientale
(tree size 1)
Polygonum prostratum
Polygonum cuspidatum
Polygonum pterocarpum
Polygonum rivulare
Polygonum acre
Polygonum hohuanshanense
Polygonum chamaechyton
Polygonum neolittorale
Polygonum oedocarpum
Polygonum parvulum
Polygonum excelsius
Polygonum subsect. oxysperma
Polygonum chayuum
Polygonum iranicum
Polygonum shuense
Polygonum ×fennicum
Polygonum globispicum
Polygonum pangianum
Polygonum snobarii
Polygonum melihae
Polygonum sect. vivipara
Polygonum argentum
Polygonum beyrichianum
Polygonum plumosum
Polygonum sect. avicularia
Polygonum alaskanum
(tree size 1)
Polygonum chlorochryseum
Polygonum frondosum
Polygonum rude
Polygonum tenuifolium
Polygonum zakirovii
Polygonum longiflorum
Polygonum breviochreatum
Polygonum opacum
Polygonum binsarii
Polygonum linicola
Polygonum chitralicum
Polygonum utahense
Polygonum regelianum
Polygonum sarbhanganicum
Polygonum kumaonum
Polygonum brachypodum
Polygonum clarkei
Polygonum pallidum
Polygonum watsonii
Polygonum macranthum
(tree size 1)
Polygonum glaberrimum
Polygonum tianschanicum
Polygonum dryandri
Polygonum limbatum
Polygonum madagascariense
Polygonum mildbraedii
Polygonum nyikense
Polygonum pseudohydropiper
Polygonum quarrei
Polygonum roxburghii
(tree size 1)
Polygonum blumei
Polygonum sieboldii
Polygonum wugongshanensis
Polygonum evenkiense
Polygonum ser. annui
Polygonum ser. coriopolitana
Polygonum ser. palmatifolia
Polygonum ser. perennes