Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium quercetorum var. quercetorum (A.Gray) Jeps.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1162930 on 2024-07-02
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (A. Gray) Jeps. [Preliminary Checklist of North American Compositae] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium quercetorum (A. Gray) Jeps. var. quercetorum [Preliminary Checklist of North American Compositae] Cirsium quercetorum var. quercetorum [Tropicos] [details] LSID urn:lsid:compositae.org:names:8A1402A9-CA03-4B2D-9210-787988ABECEB [details]