Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus occidentalis var. candidissimus (Greene) H.M.Hall. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1242903 on 2025-04-03
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Greene) H.M. Hall [Tropicos] H.M.Hall [IPNI] [details] Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Carduus candidissimus [Govaerts World Compositae Checklist A-G] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Carduus occidentalis Nutt. var. candidissimus (Greene) H.M.Hall [IPNI] Carduus occidentalis var. candidissimus (Greene) H.M. Hall [Tropicos] Carduus occidentalis var. candidissimus H.M.Hall [IPNI] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record University of California Publications in Botany 3(1): [Tropicos] [details] LSID urn:lsid:compositae.org:names:7B1776A8-5A4C-48FD-B301-E27C2678F5FC [details]