Pycnanthemum

noun
Pyc·​nan·​the·​mum | \ pikˈnan(t)thəməm\

Definition of Pycnanthemum

: a genus of North American aromatic herbs (family Labiatae) with small white or purple-dotted flowers — see mountain mint

History and Etymology for Pycnanthemum

New Latin, from pycn- + -anthemum

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