Compositae Working Group (CWG) (2021). Global Compositae Database. Arnica sonnei Greene. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1183235 on 2025-03-29
original description(1898). Pittonia 3 page(s): 104 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Pittonia 3(15B): [Tropicos] Pittonia 4 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:10284A03-F2A4-414D-AA2D-5EBE8F03BCAD [details] Taxonomy as "Sonnei" [details]