St. John's wort, Hypericum perforatum, and

St. John's wort, Hypericum perforatum, Polyadelphia, 1, 2, and blue bottle or cornflower, Centaurea cyanus, Syngenesia, 3-5. Handcoloured copperplate engraving by F. Sansom of a botanical illustration by Sydenham Edwards for William Curtis Lectures on Botany, as delivered in the Botanic Garden at Lambeth, 1805

Centaurea Cornflower Cyanus Hypericum Lectures Perforatum Register Sydenham Wort

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