Cirsium acaule (L.) A.A.Weber ex Wigg. [ Carduus acaulis L.]
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Cirsium acaule (L.) A.A.Weber ex Wigg. [ Carduus acaulis L.] [Compositae]
C. Clusius, Rar. Pl. Hist., vol. 2 fasicle 5, : p. 156, fig. 1 (1601)