Compositae Working Group (CWG) (2021). Global Compositae Database. Scorzonera roylei DC.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1185480 on 2024-05-01
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record A.P. de Candolle, Prodr. 7. 1838 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:8B30511C-531F-4DA6-B37D-6A7A399AA984 [details] Taxonomy late Apr 1838 [details] Type material [India?] "in Indiâ orient.", Royle [details]