Reynoutria japonica
(Itadori knotweed)
Plants
Exotic
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Impacts

7 results for Reynoutria japonica (Itadori knotweed)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Reference
4674 Reynoutria japonica Habitat Alteration Experimental Field Japanese knotweed, Fallopia japonica, invasions could degrade terrestrial habitat quality... 37068
4688 Reynoutria japonica Habitat Alteration Experimental Field Japanese knotweed, Fallopia japonica, invasion decreased the cover of most plant species... 37070
4690 Reynoutria japonica Habitat Alteration Experimental Field The stand of Japanese knotweed, Polygonum cuspidatum, had a significant impact decreasing... 37073
4691 Reynoutria japonica Habitat Alteration Observational Field Japanese knotweed, Fallopia japonica, has reduced the diversity and abundance of native... 37077
4692 Reynoutria japonica Habitat Alteration Observational Field Blocks of riparian vegetation with higher coverage of Japanese knotweed, Reynoutria spp.... 37078
4751 Reynoutria japonica Habitat Alteration Observational Field Louisiana Waterthrush showed a significant negative correlation in abundance with presence of... 37102
7052 Reynoutria japonica Habitat Alteration Experimental Laboratory In a laboratory setting, extracts from F. japonica affect microbial community structure;... 42116

View all impact types for Reynoutria japonica
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Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/21/2025].

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