concept

Solomon's seal (Polygonatum multiflorum): rootstock. Watercolour.

A plant of the Polygonaceae family, possibly a Rumex: flowering stem. Watercolour.

Five flowering plants, including bistort (Polygonum bistorta) and knotgrass (Polygonum aviculare). Chromolithograph by W. Dickes & co., c. 1855.

Three flowering plants, all types of dock (Rumex species). Chromolithograph by W. Dickes & co., c. 1855.

Two species of dock (Rumex species): flowering stems with leaf and rhizome. Coloured lithograph by W. G. Smith, c. 1863, after himself.

Five flowering plants, including water pepper (Polygonum hydropiper) and redleg (Polygonum persicaria). Chromolithograph by W. Dickes & co., c. 1855.

Redleg plant (Polygonum persicaria): flowering stem. Chromolithograph, c. 1877, after F. E. Hulme.

Common sorrel (Rumex acetosa): flowering stem and separate roots. Partially coloured lithograph by F. Waller, c. 1863, after C. Gower.

Spanish rhubarb dock (Rumex abyssinicus Jacq.): two sections of the flowering stem with separate root, leaf, part of stem, flower and fruit. Coloured engraving after F. von Scheidl, 1776.

Seaside grape (Coccoloba uvifera): fruiting stem and floral segments. Coloured etching by J. Pass, c. 1801, after J. Ihle.

Four flowering plants, all types of dock or sorrel (Rumex species). Chromolithograph by W. Dickes & co., c. 1855.

A plant (Oxyria digyna): flowering and leafy stem. Coloured lithograph by F. Waller, c. 1863, after C. Gower.

A galled tree (Mimosa cinerea), a Jamaica pepper tree (Pimenta dioica) and a Turkey rhubarb plant (Rheum palmatum). Coloured engraving, c. 1827.

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Polygonaceae

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Common sorrel (Rumex acetosa): flowering stem and separate roots. Partially coloured lithograph by F. Waller, c. 1863, after C. Gower.

Three flowering plants, all types of dock (Rumex species). Chromolithograph by W. Dickes & co., c. 1855.

Four flowering plants, all types of dock or sorrel (Rumex species). Chromolithograph by W. Dickes & co., c. 1855.

A plant (Oxyria digyna): flowering and leafy stem. Coloured lithograph by F. Waller, c. 1863, after C. Gower.

A galled tree (Mimosa cinerea), a Jamaica pepper tree (Pimenta dioica) and a Turkey rhubarb plant (Rheum palmatum). Coloured engraving, c. 1827.