Compositae Working Group (CWG) (2021). Global Compositae Database. Eupatorium obtusifolium Willd.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1186623 on 2025-04-03
Contributed data: Notes Data only shown for fields conflicting with the consensus taxon record not Vernonia obtusifolia Less., 1829 [Robinson Vernonieae] VERNONIEAE [Robinson Eupatorieae] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Sp. Pl. 3 [Govaerts World Compositae Checklist A-G] Sp. Pl. 3: 1768. 1803 [Robinson Vernonieae] Sp. Pl. 3: 1768. 1804. [Robinson Eupatorieae] Species Plantarum. Editio quarta 3: [Tropicos] [details] LSID urn:lsid:compositae.org:names:1FA9A036-09D9-4C24-A129-77E9B6E05549 [details] Taxonomy Apr-Dec 1803 [details]