Specimen Information

Reynoutria japonica
(Itadori knotweed)
Plants
Exotic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

Specimen ID1668980
GroupPlants
GenusReynoutria
Speciesjaponica
Common NameItadori knotweed
StateMD
CountyPrince George's
LocalityAmmendale
Mapping AccuracyApproximate
HUC8 NameMiddle Potomac-Anacostia-Occoquan
HUC8 Number02070010
Map
+
Collection Day23
Collection Month8
Collection Year1916
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:16075
Author:Smithsonian Institution
Date:2019
Title:United States National Herbarium (US)
Publisher:Department of Botany, Smithsonian Institution
Record TypeSpecimen
DisposalHerbarium
Museum Cat NumberUS 1087706
Freshwater/MarineFreshwater
Number Collected1
Year ClassFlowering

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/23/2024].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.