Compositae Working Group (CWG) (2024). Global Compositae Database. Helenium autumnale var. longifolium (Sm.) Voss. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1161933 on 2025-03-24
original description(1894). Vilm. Blumengärtn., ed. 3. 1 page(s): 495 [details]
Unreviewed
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helenium autumnale L. var. longifolium (Sm.) Voss [IPNI] [details] LSID urn:lsid:compositae.org:names:B5F9F74A-1BDC-496F-8AE0-2AB9EBB341BE [details]