Liatris squarrosa (L.) Michx. [ Serratula squarrosa L.]
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Liatris squarrosa (L.) Michx. [ Serratula squarrosa L.] [Compositae]
J.J. Dillenius, Hort. Elth., vol. 1 : p. 83, t. 71, fig. 82 (1732)