Compositae Working Group (CWG) (2021). Global Compositae Database. Ptarmica impunctata Nyman. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1107019 on 2025-03-28
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Ptarmica impunctata [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:7345CEC4-33F6-41FA-BAD0-BE363F30B2D3 [details] Taxonomy Oct 1879 [details]