Compositae Working Group (CWG) (2021). Global Compositae Database. Sonchus azureus Ledeb.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1180293 on 2025-04-03
original description(1833). Fl. Altaic. [Ledebour]. 4 page(s): 138 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record C.F. von Ledebour, Fl. Altaic. 4. 1883 [Cichorieae Portal] Fl. Altaic. 4 : 138 (1833) [Vascular Plants of Russia] Flora Altaica 4: [Tropicos] [details] LSID urn:lsid:compositae.org:names:C4761A11-1023-485F-9A47-4F470981E21E [details] Taxonomy Jul-Dec 1833 [details]