Pycnanthemum incanum (L.) Michx. [ Clinopodium incanum L.]
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Pycnanthemum incanum (L.) Michx. [ Clinopodium incanum L.] [Labiatae]
J.J. Dillenius, Hort. Elth., vol. 1 : p. 88, t. 74, fig. 85 (1732)