Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus arvensis var. albiflorus Farw.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1237678 on 2024-05-13
original descriptionAsa Gray Bull. 3: 22 (1895) page(s): 22 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Asa Gray Bull. 3 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:AD10B804-CA34-4875-9A86-E2987A06C876 [details]