Phagnalon sordidum (L.) Rchb. [ Conyza sordida L.]
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Phagnalon sordidum (L.) Rchb. [ Conyza sordida L.] [Compositae]
J. Barrellier, Pl. Galliam Hispaniam Italiam Obs.: t. 365-368, fig. 368 (1714)