Compositae Working Group (CWG) (2021). Global Compositae Database. Crepis flexuosa (Ledeb.) Bernh.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1146645 on 2024-04-29
LSID urn:lsid:compositae.org:names:4D92ED1D-BD9E-4ADF-B54E-EF6C0E737B16 [details] Status nom. inval. a pro syn. of Sonchus flexuosus Ledeb. (1811). [details] Taxonomy 5 Jan 1839 [details]