Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus kelseyi Rydb.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1210574 on 2025-04-04
original description(1900). Mem. New York Bot. Gard. 1 page(s): 449 [details]
Unreviewed
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:7738A0F5-D8C7-48C7-8A19-ED769397936E [details] Taxonomy as "Kelseyi" [details]