Pycnanthemum clinopodioides Torrey & A. Gray. Phen: Jul-Sep. Hab: Forests, woodlands, woodland borders. Dist: MA south to NC, SC, and TN, mostly on the Coastal Plain.
Origin/Endemic status: Native
Taxonomy Comments: A tetraploid species (n = 38), probably of allotetraploid origin.
Synonymy: = C, F, K1, NY, Pa, Tn, Va, WV, Chambers & Hamer (1992), Grant & Epling (1943); = Koellia clinopodioides (Torr. & Gray) Kuntze – S; = Pycnanthemum ×clinopodioides – K4, NE; < Pycnanthemum verticillatum (Michx.) Pers. – RAB
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