Concept
Comfrey
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Comfrey (Symphytum asperrimum): entire flowering plant. Coloured etching by C. Pierre, c. 1865, after P. Naudin.
Naudin, Philibert, active 1870.Date: [1865]Reference: 24673i
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Comfrey (Symphytum officinale L.): flowering stem with separate leaf and rootstock. Coloured etching by M. Bouchard, 1774.
Date: [1774]Reference: 16793i- Books
Comfrey : past, present and future / by Lawrence D. Hills.
Hills, Lawrence Donegan, 1911-1990.Date: 1976
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Four flowering plants, including a cowslip (Primula veris), comfrey (Symphytum officinale) and a bulrush (Scirpus species). Colour nature print by A. Auer, c. 1853.
Date: 1853 [1854]Reference: 23770i
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Comfrey (Symphytum sp.): entire flowering plant with separate floral sections. Coloured etching by M. Bouchard, 1774.
Date: [1774]Reference: 16795i