Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus scopulorum Rydb.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1146447 on 2024-05-15
original description(1900). Mem. New York Bot. Gard. 1 page(s): 449 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Memoirs of the New York Botanical Garden 1: [Tropicos] [details] LSID urn:lsid:compositae.org:names:C5419CBB-CF8F-417D-95C0-EDAA754CF16A [details] Taxonomy nom. illeg. hom. [details]