Fallopia japonica var. japonica
(Japanese knotweed)

5 results for Fallopia japonica var. japonica (Japanese knotweed)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1660216 CTHartfordHockanum River2005 01080205 Outlet Connecticut Riverunknown
1660218 CTNew HavenWallingford2005 01100004 Quinnipiacunknown
1669371 ILKendallAlong bridge approach, east side of Big Rock Creek crossing; southeast quadrant of Hennig Road crossing, Plano.2005 07120007 Lower Foxunknown
1669320 MOLafayetteLexington, N side of town.2005 10300101 Lower Missouri-Crookedunknown
1669439 MOSalineMiami, N side of town. Miami access on S side of Missouri River.2005 10300101 Lower Missouri-Crookedunknown

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/18/2022].

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.