Show Lower Taxa
Fallopia japonica
Bot. J. Linn. Soc. 98: 369. 1988.
Common names: Japanese knotweed
WeedyIntroducedIllustrated
Basionym: Reynoutria japonica Houttuyn Nat. Hist. 2: 640, plate 51, fig. 1. 1777
Distribution
B.C., Man., N.B., N.S., Nfld. and Labr. (Nfld.), Ont., P.E.I., Que., Alaska, Ark., Calif., Colo., Conn., D.C., Del., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Md., Mich., Minn., Miss., Mo., Mont., N.C., N.H., N.J., N.Y., Nebr., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Utah, Va., Vt., W.Va., Wash., Wis., Asia, introduced in Europe.
Discussion
Varieties 4 (1 in the flora).
Fallopia japonica is planted widely as a garden ornamental; it has a proclivity to escape and spread aggressively. Once established, plants can be difficult to eradicate because of their extensive, woody rhizomes. The species has been declared noxious in Alabama, California, Oregon, Vermont, and Washington.
Selected References
Lower Taxa
... more about "Fallopia japonica"
Japanese knotweed +
B.C. +, Man. +, N.B. +, N.S. +, Nfld. and Labr. (Nfld.) +, Ont. +, P.E.I. +, Que. +, Alaska +, Ark. +, Calif. +, Colo. +, Conn. +, D.C. +, Del. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, N.C. +, N.H. +, N.J. +, N.Y. +, Nebr. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Utah +, Va. +, Vt. +, W.Va. +, Wash. +, Wis. +, Asia + and introduced in Europe. +
Bot. J. Linn. Soc. +
1988 +
Fallopia japonica +
Fallopia +
species +