Bristoe Station Battlefield, Manassas, VA
Bristoe Station Battlefield, Manassas, VA
Conway Robinson Memorial State Forest, Gainesville, VA
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Family: Polygonaceae
Mid-Atlantic bloom time: May - October
Bristly Lady's-thumb is a noxious, shade-tolerant invasive that is common throughout the mid-Atlantic region, from wetlands to upland forests. Native to southeast Asia, it was first discovered in North America in 1910 near Philadelphia, Pennsylvania.
Bristly Lady's-thumb's small inflorescences are dark pink to red, usually at the top of the plant. A diagnostic feature is the relatively long upward-pointing bristles that arise from the sheaths at each branching leaf node of its stem.
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24 July 2014
Bristoe Station Battlefield, Manassas, VA
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24 July 2014
Bristoe Station Battlefield, Manassas, VA
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25 July 2014
Conway Robinson Memorial State Forest, Gainesville, VA
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