Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium rigidum Porta. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1126066 on 2024-05-06
original description(1905). Atti Imp. Regia Accad. Rovereto Ser. III, xi. Fasc. 2 page(s): 5 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium ×rigidum Porta [Govaerts World Compositae Checklist A-G] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Atti Imp. Regia Accad. Rovereto , III, 11(2) [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:C996574C-07C2-455C-B234-470C69C03F8A [details] Taxonomy Fedde, Repert. Nov. Sp.viii. 484. [details]