Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus nigrescens var. assoi (Willk.) O.Bolòs & Vigo. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1163024 on 2024-10-18
original description(1988). Collect. Bot. (Barcelona) 17(1) page(s): 91 [details]
Unreviewed
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Carduus nigrescens Vill. var. assoi (Willk.) O.Bolòs & Vigo [IPNI] [details] LSID urn:lsid:compositae.org:names:03EEF0BA-97EE-4295-96D2-7F924E969180 [details] Taxonomy 1987 publ. 1988 [details]