Mulgedium sibiricum (L.) Less., Syn. Gen. Compos.: 142. 1832 Mulgedium sibiricum (L.) Less., Syn. Gen. Compos.: 142. 1832is new combination for Sonchus sibiricus L., Sp. Pl.: 795. 1753Taxon for this nameMulgedium sibiricum (L.) Less., Syn. Gen. Compos.: 142. 1832