Petasites albus (L.) Gaertner
      
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1 771867 Petasites albus (L.) Gaertner [181 1040416 Tussilago alba L.] Compositae
J. Sturm, E.H.L. Krause, K.G. Lutz, Deutschl. Fl., ed. 2, vol. 13 : t. 55 (1905)