Erect Knotweed Polygonum erectum Linnaeus    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Caryophyllales   >   Family Polygonaceae   >   Genus Polygonum   
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Mapped Records: 21     Unmapped Records: 0
Total Records: 21
Mapped Record Types: Specimens Publications Observations

Records

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Specimens

Source Record Count Details
Not available 10
County Quad Link Date
Baltimore Baltimore West View species 8/5/1972
Frederick Frederick View species 6/5/1941
Garrett Oakland View species 8/1/1904
Harford Aberdeen View species 9/10/1941
Howard View species 6/6/1965
Howard Beltsville View species 8/10/1974
Howard Savage View species 8/4/1939
Prince George's Beltsville View species 7/1/1929
Prince George's Washington East View species 7/24/1902
Talbot Easton View species 6/3/1940
Patuxent Research Refuge Plant Inventory Project 1
County Quad Link Date
Prince George's Laurel View species 9/29/1937
Smithsonian NMNH 5
County Quad Link Date
Baltimore City Baltimore East View species 8/21/1904
Montgomery Falls Church View species 11/2/1941
Montgomery Kensington View species 0/0/1898
Prince George's Beltsville View species 0/0/1918
Prince George's Laurel View species 9/29/1937

Publications

Source Record Count Details

Reports

Source Record Count Details
Bob Ringler 2
County Quad Record ID Date
Carroll Emmitsburg 459787 6/2/2017
Carroll Woodsboro 484268 6/21/2017
Brent Steury 1
County Quad Record ID Date
Prince George's 792861 12/0/2003
John Hall 1
County Quad Record ID Date
Dorchester Church Creek 611352 9/8/2018
Wayne Longbottom 1
County Quad Record ID Date
Caroline Fowling Creek 377359 6/5/2006