Purple coneflower (Echinacea purpurea, syn. Echinacea intermedia)  From Flore des Serres et des Jardins de l'Europe (Flowers of the Greenhouses and Gardens of Europe) vol. 4, by Charles Lemaire, Michael Scheidweiler, and Louis van Houtte, Ghent, 1848.  (Source: archive.org)
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