Petasites japonicus subsp. giganteus Kitam. in Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, 16: 164. 1942
Petasites japonicus subsp. giganteus in Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, 16: 164. 1942
Taxon for this namePetasites japonicus subsp. giganteus in Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, 16: 164. 1942