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Place
- North America210
- USA210
- Washington, D.C.[remove]210
- Contact UM Herbarium80
- no data65
- No data29
- Washington, D. C.14
- Takoma Park5
- Washington DC4
- Chevy Chase3
- Near Washington, D.C.3
- Rock Creek Park3
- Washington D.C.3
- Piedmont, Potomac River, 0.5 miles below Fletcher's Boathouse.2
- Rock Creek Park, Washington, D. C.2
- Rock Creek, Washington, D. C.2
- Rock outcrop west of trail to ferry, mainland, opposite Plummers Island2
- Washington2
- West end of Plummer's Island2
- Anacostia River, along northeastern edge of Kenilworth Marsh.1