Compositae Working Group (CWG) (2025). Global Compositae Database. Heterotheca villosa var. shevockii Semple. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1235604 on 2025-09-13
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Heterotheca villosa (Pursh) Shinners var. shevockii Semple [IPNI] Heterotheca villosa (Pursh) Shinners var. shevockii Semple [Preliminary Checklist of North American Compositae] [details] LSID urn:lsid:compositae.org:names:5BDFD540-1FAB-4AD8-9419-BF120E6DBC30 [details] Type material 16 Nov 1981, 9110, J.R.Shevock, holotype CAS, isotype WAT²WAT [details]