Specimen Information

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

Specimen ID1877378
GroupPlants
GenusReynoutria
Speciesjaponica
Common NameItadori knotweed
StateTN
CountyCarter
LocalityAlong Doe River in Roan Mountain State Park
Mapping AccuracyAccurate
HUC8 NameWatauga, North Carolina, Tennessee
HUC8 Number06010103
HUC10 NameDoe River
HUC10 Number0601010304
HUC12 NameUpper Doe River
HUC12 Number060101030402
Map
Collection Day21
Collection Month6
Collection Year2016
Year AccuracyActual
Statusestablished
CommentsKnotweed managed by Roan Mountain State Park in 2016
Record TypeNAS sighting report
VerifierIan Pfingsten
Number Collected200
Photo
Reynoutria japonica

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/6/2025].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

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