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Nabalus altissimus (L.) Hook.
(Prenanthes altissima)
Tall Rattlesnake-root
Asteraceae — Aster family
Native
Nabalus altissimus
Middle Run Valley Natural Area
September 2001
Nabalus altissimus
Rolling Mill Road
September 2009
Nabalus altissimus
Rolling Mill Road
September 2009
A plant with unlobed leaves.
Nabalus altissimus
White Clay Creek State Park -- Thompson Station Road
September 2014
A plant with deeply lobed leaves.