Compositae Working Group (CWG) (2021). Global Compositae Database. Helenium autumnale var. canaliculatum (Lam.) Torr. & A.Gray. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1228619 on 2025-03-27
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Lam.) Torr. & A. Gray [Preliminary Checklist of North American Compositae] (Lam.) Torr. & A. Gray [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helenium autumnale L. var. canaliculatum (Lam.) Torr. & A. Gray [Preliminary Checklist of North American Compositae] Helenium autumnale L. var. canaliculatum (Lam.) Torr. & A.Gray [IPNI] Helenium autumnale var. canaliculatum (Lam.) Torr. & A. Gray [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record A Flora of North America: containing . . . 2(2): [Tropicos] [details] LSID urn:lsid:compositae.org:names:7B384820-247C-4B98-BC70-49DB0E160464 [details] Taxonomy Apr 1842 [details]