Compositae Working Group (CWG) (2025). Global Compositae Database. Carduus spathulatus Osterh.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1144568 on 2025-03-29
original description(1905). Bull. Torrey Bot. Club 32 page(s): 612 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Bull. Torrey Bot. Club [IPNI] Bulletin of the Torrey Botanical Club 32(11): [Tropicos] [details] LSID urn:lsid:compositae.org:names:B047B157-F141-4D81-9F09-DE51BBEC4357 [details]