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hybrid Japanese Knotweed
hybrid Japanese Knotweed photo by ALJ

Japanese Knotweed
Japanese Knotweed photo by ALJ

Giant Knotweed
Giant Knotweed photo by ALJ

An Overlooked Hybrid Japanese Knotweed (Polygonum cuspidatum x sachalinense; POLYGONACEÆ) in North America

    The article An Overlooked Hybrid Japanese Knotweed co-written by Arthur Lee Jacobson and Peter F. Zika (shown in above photos), was published in the scholarly botanical journal Rhodora, Volume 105, Number 922, pages 143-152. The article gave details on the following abstract:

    A new combination is provided for the hybrid between Polygonum cuspidatum and P. sachalinense. The hybrid, Polygonum x bohemicum (J. Chrtek & A. Chrtkova) P.F. Zika & A.L. Jacobson, comb. nov., is widespread and invasive across North America. We illustrate the parents and hybrid, and supply a key to distinguish the three taxa.

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Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert
Arthur Lee Jacobson plant expert

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