Crepis flexuosa (Ledeb.) Benth. ex C.B. Clarke
      
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1 286602 Crepis flexuosa (Ledeb.) Benth. ex C.B. Clarke [181 960528 Sonchus flexuosus Ledeb.] Compositae
E.B. Babcock, Genus Crepis (1947): p. 535, fig. 151 (1948)