Compositae Working Group (CWG) (2021). Global Compositae Database. Crepis occidentalis var. costata A.Gray. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1238944 on 2025-04-02
original description(1876). W.H.Brewer & S.Watson, Bot. California [W.H.Brewer] 1 page(s): 435 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record A. Gray [Preliminary Checklist of North American Compositae] A. Gray [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Crepis occidentalis Nutt. var. costata A. Gray [Preliminary Checklist of North American Compositae] Crepis occidentalis Nutt. var. costata A.Gray [IPNI] Crepis occidentalis var. costata A. Gray [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Bot. California 1 [Govaerts World Compositae Checklist A-G] Geological Survey of California, Botany 1: [Tropicos] [details] LSID urn:lsid:compositae.org:names:59293CFA-FB47-4A65-ACB5-F8D41F783421 [details]