Taxonomy dt. Sep 1994; publ. on 31 Jan 1995 [details]
Compositae Working Group (CWG) (2021). Global Compositae Database. Eurybia horrida (Wooton & Standl.) G.L.Nesom. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1181015 on 2024-05-18