Compositae Working Group (CWG) (2025). Global Compositae Database. Silphium laeve Hook.. Accessed at: https://compositae.org/gcd/aphia.php?p=taxdetails&id=1094923 on 2025-03-27
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Silphium laeve [Govaerts World Compositae Checklist A-G] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record London Journal of Botany 6: [Tropicos] [details] LSID urn:lsid:compositae.org:names:E70E2474-CA8B-4D48-8E15-5E1EED3E4E9C [details]