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hybrid Japanese knotweed
53%
Fallopia X bohemica
prostrate knotweed
46%
Polygonum aviculare
Bolander's phacelia
44%
Phacelia bolanderi
climbing false buckwheat
44%
Fallopia scandens
Bidwell's knotweed
41%
Polygonum bidwelliae
Bolander's horkelia
41%
Potentilla bolanderi
Bolander's ragwort
41%
Packera bolanderi
pink smartweed
41%
Persicaria bicornis
Austin's knotweed
40%
Polygonum austiniae
Douglas' knotweed
40%
Polygonum douglasii
Marin knotweed
40%
Polygonum marinense
Nuttall's knotweed
40%
Polygonum nuttallii
milkwort knotweed
40%
Polygonum polygaloides
Shasta knotweed
40%
Polygonum shastense
October flower
40%
Polygonella polygama
garden buckwheat
40%
Fagopyrum esculentum
pinkhead smartweed
40%
Persicaria capitata
kiss me over the garden gate
40%
Persicaria orientalis
dotted knotweed
40%
Persicaria punctata
stout smartweed
40%
Persicaria robustior
Alaska wild-rhubarb
40%
Koenigia alaskana
Davis' knotweed
40%
Koenigia davisiae
halberdleaf tearthumb
40%
Persicaria arifolia
climbing false buckwheat
40%
Fallopia dumetorum
alpine bistort
40%
Bistorta vivipara
water smartweed
40%
Persicaria amphibia
Blake's knotweed
37%
Polygonum achoreum
bushy knotweed
37%
Polygonum ramosissimum
tall jointweed
37%
Polygonella gracilis
Chinese fleecevine
37%
Fallopia baldschuanica
fringed black bindweed
37%
Parogonum ciliinode
bog smartweed
37%
Persicaria setacea
Bolander's yampah
36%
Perideridia bolanderi
Cascade knotweed
35%
Polygonum cascadense
beach knotweed
35%
Polygonum paronychia
water-pepper
35%
Persicaria hydropiper
Japanese knotweed
35%
Reynoutria japonica
arrowleaf tearthumb
35%
Persicaria sagittata
oriental lady's thumb
35%
Persicaria posumbu
spotted ladysthumb
35%
Persicaria maculosa
oriental lady's thumb
35%
Persicaria longiseta
sandlace
35%
Polygonum dentoceras
erect knotweed
35%
Polygonum erectum
Fowler's knotweed
35%
Polygonum fowleri
broadleaf knotweed
35%
Polygonum minimum
denseflower knotweed
35%
Persicaria glabra
Largeflower jointweed
35%
Polygonella robusta
Howell's bluegrass
32%
Poa howellii
American bistort
32%
Bistorta bistortoides
Parry's knotweed
32%
Polygonum parryi
Carey's smartweed
32%
Persicaria careyi
coastal jointweed
31%
Polygonella articulata
black bindweed
31%
Fallopia convolvulus
mild waterpepper
31%
Persicaria hydropiperoides
jumpseed
31%
Persicaria virginiana
Sawatch knotweed
31%
Polygonum sawatchense
Asiatic tearthumb
31%
Persicaria perfoliata
wiry knotweed
30%
Polygonum majus
pleatleaf knotweed
30%
Polygonum tenue
pygmy smartweed
30%
Persicaria minor
Bolander's mock dandelion
29%
Phalacroseris bolanderi
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