Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium horridulum (Torr. & A.Gray) Fernald. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1132477 on 2024-05-08
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record fo. elliottii (Torr. & A. Gray) Fernald [MesoAmericana] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium horridulum fo. elliottii (Torr. & A. Gray) Fernald [MesoAmericana] [details] LSID urn:lsid:compositae.org:names:3AED4E58-A119-43E6-A6CB-7B07093E37B7 [details]