Specimen Information

Reynoutria japonica
(Itadori knotweed)
Plants
Exotic

Specimen ID1661783
GroupPlants
GenusReynoutria
Speciesjaponica
Common NameItadori knotweed
StateME
CountyKnox
LocalityWarren
Mapping AccuracyApproximate
HUC8 NameSt. George-Sheepscot
HUC8 Number01050003
Map
+
Collection Day20
Collection Month9
Collection Year1988
Year AccuracyActual
Potential Pathwayunknown
Statusunknown
Reference 1
Ref. Number:26212
Author:GBIF
Date:2013
Title:Global Biodiversity Information Facility (GBIF) Database.
Publisher:Global Biodiversity Information Facility
Reference 2
Ref. Number:28167
Author:Les, D.H., and R.S. Capers.
Date:2012
Title:George Safford Torrey Herbarium (CONN)
Publisher:University of Connecticut
CommentsLarge branched herbs. Often plants, & growing from discarded roots. Increasing widely in last 60 yrs. Spreading vegetatively in dense colonies over 6 ft. tall, dominating all other herbaceous plants.
Record TypeSpecimen
DisposalHerbarium
Museum Cat NumberCONN00148971
Freshwater/MarineFreshwater


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/24/2024].

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