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Photographer: Emmet J. Judziewicz
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Family Polygonaceae
Fallopia sachalinensis (F.W.Schmidt ex Maxim.) Nakai
giant knotweed
Fallopia: for Gabriello (Gabriele) Fallopia, 16th century Italian anatomist who discovered fallopian tubes
sachalinensis: of the island of Sakhalin, north of Japan
Prohibited Invasive - Eradicate!
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| Status: | Introduced - persisting and spreading; ecologically invasive |
| Plant: | erect to arching, perennial, 4'-10' tall, stout, shrub-like forb; long rhizomes forming clones to several acres; stems angular |
| Flower: | white to greenish, 5-parted, petals and petal-like sepals; inflorescence many 3"-6" branched clusters from the upper leaf axils |
| Fruit: | dry seed |
| Leaf: | alternate, up to 12" long, oval with a gradually tapering tip and a heart-shaped base |
| Habitat: | shores, grasslands, woods |
| (Glossary) |
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