Reynoutria japonica (Japanese Knotweed) is a species of perennial herb in the family Polygonaceae. They have a self-supporting growth form. They are native to Asia. They have simple, broad leaves. Flowers are visited by Bald-faced Hornet, Common Eastern Bumblebee, Eichlinia cucurbitae, and Honey bee. Individuals can grow to 1.9 m.
EOL has data for 22 attributes, including: