Reynoutria japonica
(Itadori knotweed)
Plants
Exotic

18 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
4675 Reynoutria japonica Competition Anecdotal N/A Japanese knotweed, Fallopia japonica, is a successful competitor. The foliage forms dense... 37069
4676 Reynoutria japonica Infrastructure Anecdotal N/A The height to which Japanese knotweed, Fallopia japonica, grows can reduce visibility on... 37069
4677 Reynoutria japonica Infrastructure Anecdotal N/A In winter when the vegetative growth of Japanese knotweed, Fallopia japonica, has died... 37069
4678 Reynoutria japonica Infrastructure Anecdotal N/A In times of flooding, dense stands of Japanese knotweed, Fallopia japonica, on the... 37069
4679 Reynoutria japonica Property Value Anecdotal N/A In times of flooding, dense stands of Japanese knotweed, Fallopia japonica, on the... 37069
4680 Reynoutria japonica Navigation Anecdotal N/A In times of flooding, dense stands of Japanese knotweed, Fallopia japonica, on the... 37069
4681 Reynoutria japonica Property Value Anecdotal N/A Decaying plant material from In times of flooding, dense stands of Japanese knotweed, Fallopia... 37069
4682 Reynoutria japonica Human Health Anecdotal N/A Decaying plant material from In times of flooding, dense stands of Japanese knotweed, Fallopia... 37069
4683 Reynoutria japonica Infrastructure Anecdotal N/A Japanese knotweed, Fallopia japonica, shoots are able to push up through asphalt, damaging... 37069
4688 Reynoutria japonica Habitat Alteration Experimental Field Japanese knotweed, Fallopia japonica, invasion decreased the cover of most plant species... 37070
4689 Reynoutria japonica Competition Experimental Laboratory All non-zero concentrations of Polygonum cuspidatum resulted in significant losses of... 37071
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
4752 Reynoutria japonica Competition Observational Field Native plant species richness and cover lower in Japanese knotweed, Fallopia japonica... 37068
7052 Reynoutria japonica Habitat Alteration Experimental Laboratory In a laboratory setting, extracts from F. japonica affect microbial community structure;... 42116

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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/6/2024].

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