Tephroseris helenitis (L.) B.Nord. [ Senecio helenitis (L.) Schinz & Thell.]
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Tephroseris helenitis (L.) B.Nord. [ Othonna helenitis L.] [Compositae]
A. Fiori, G. Paoletti, Iconogr. Fl. Ital.: p. 428, t. 34221, fig. 3 (1895-1904)