Field chickweed Cerastium arvense Location: Billygoat Trail - Great Falls of the Potomac National Park - near Potomac, MD Year: 2005 Merckslides catalogue number: 05-21457 Comments:

Field chickweed Cerastium arvense Location: Billygoat Trail, C & O Canal National Park, near Potomac, MD Year: 2009 Merckdigitals catalogue number: 05-71117 Comments:

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