Fallopia japonica
(Japanese knotweed)
Plants
Exotic
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Impacts

9 results for Fallopia japonica (Japanese knotweed)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1660229 MDBaltimoreEast of railroad, opposite Batavia Farm road, Rosedale1957 02060003 Gunpowder-Patapscounknown
1659937 MDBaltimoreLoch Raven Reservoir, Towson1971 02060003 Gunpowder-Patapscounknown
1669356 MDDorchesterEast of Cambridge, along US Rt. 50, Ocean Gateway, just east of MD Rt. 16, Mount Holly Road.2008 02060005 Choptankunknown
1669006 MDMontgomeryBorder of Goldsboro Rd., Glen Echo1984 02070008 Middle Potomac-Catoctinunknown
1661392 MDMontgomeryChevy Chase vicinity1916 02070008 Middle Potomac-Catoctinunknown
1668975 MDMontgomeryChevy Chase, Rock Creek Ford Rd. near Circle Rock Creek Park and Vicinity1915 02070008 Middle Potomac-Catoctinunknown
1668963 MDMontgomeryGlen Echo Junction C. & O. Canal1916 02070008 Middle Potomac-Catoctinunknown
1658832 MDMontgomeryPlummers Island. NW side.2004 02070008 Middle Potomac-Catoctinunknown
1668980 MDPrince George'sAmmendale1916 02070010 Middle Potomac-Anacostia-Occoquanunknown

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.

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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 [4/25/2024].

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