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- Sighting: Alnus glutinosa at 507 March Hill Road, Walpole, NH 03608
Sighting: Alnus glutinosa at 507 March Hill Road, Walpole, NH 03608
by Michael from Distant Hill on February 18 2023
Location notes: At the edge of a small bog/fen at Distant Hill Gardens and Nature Trail.
Comments: Alnus glutinosa, aka European Black Alder, is on the New Hampshire Prohibited Invasive Plant Species list.