Podospermum purpureum (L.) W.D.J.Koch & Ziz [ Scorzonera purpurea L.]
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Podospermum purpureum (L.) W.D.J.Koch & Ziz [ Scorzonera purpurea L.] [Compositae]
W. Curtis, Bot. Mag., vol. 49 : t. 2294 (1822) [J. Curtis]