Compositae Working Group (CWG) (2021). Global Compositae Database. Helenium amphilobum A.Gray. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1191125 on 2025-03-25
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record A. Gray [Preliminary Checklist of North American Compositae] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helenium amphilobum A. Gray [Preliminary Checklist of North American Compositae] [details] LSID urn:lsid:compositae.org:names:E7F45130-F949-4479-9099-880AC1E98490 [details]