Compositae Working Group (CWG) (2021). Global Compositae Database. Heterotheca hyssopifolia var. gigantea (Small) V.L.Harms. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1237703 on 2024-09-15
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Small) V.L. Harms [Preliminary Checklist of North American Compositae] (Small) V.L. Harms [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Heterotheca hyssopifolia (Nutt.) R.W. Long var. gigantea (Small) V.L. Harms [Preliminary Checklist of North American Compositae] Heterotheca hyssopifolia var. gigantea (Small) V.L. Harms [Tropicos] [details] LSID urn:lsid:compositae.org:names:999262A9-5D00-4CB4-8AA3-E33BE611628C [details] Taxonomy not in IPNI - 6/03 [details]