Concept
Knapweeds
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Cornflower or bachelor's-buttons (Centaurea cyanus L.): flowering stem with separate floral segments and a description of the plant and its uses. Coloured line engraving by C.H.Hemerich, c.1759, after T.Sheldrake.
Sheldrake, Timothy, active 1740-1770.Date: [1759]Reference: 18218i
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Three plants, including a cornflower (Centaurea cyanus) and an iris: flowering stems with two grasshoppers. Etching by N. Robert, c. 1660, after himself.
Robert, Nicolas, 1614-1685.Date: [c. 1660]Reference: 24935i
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A cornflower (Centaurea cyanus), autumn crocus (Colchicum species) and saffron crocus (Crocus sativus): three flowers with a caterpillar and bee. Etching by N. Robert, c. 1660, after himself.
Robert, Nicolas, 1614-1685.Date: [c. 1660]Reference: 24908i