Compositae Working Group (CWG) (2021). Global Compositae Database. Sonchus royleanus DC.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1169613 on 2025-04-03
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record A.P. de Candolle, Prodr. 7. 1838 [Cichorieae Portal] DC., Prodr. 7. 1838. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:FCC79302-920E-4A38-9CCB-16BFA5D2CEF9 [details] Taxonomy late Apr 1838 [details] Type material [Bangladesh/India/Myanmar] "in Ind. orient.", Royle [details]