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  • A plant of the Polygonaceae family: flowering stem. Watercolour.
  • A plant of the Polygonaceae family, possibly a Rumex: flowering stem. Watercolour.
  • A plant of the Polygonaceae family, possibly a Rumex: flowering stem. Watercolour.
  • Polygonum bistorta L. Polygonaceae Bistort, snakeweed, Easter Ledges. Distribution: Europe, N & W Asia. Culpeper: “... taken inwardly resist pestilence and poison, helps ruptures, and bruises, stays fluxes, vomiting and immoderate flowing of the terms in women, helps inflammations and soreness of the mouth, and fastens loose teeth, being bruised and boiled in white wine and the mouth washed with it.” In modern herbal medicine it is still used for a similar wide variety of internal conditions, but it can also be cooked and eaten as a vegetable. The use to relieve toothache, applied as a paste to the affected tooth, seems to have been widespread. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Two plants, one possibly a knotweed (Polygonum species). Watercolour.
  • A plant, possibly a knotweed (Polygonum species): flowering stem and leaves. Watercolour.
  • Buckwheat (Fagopyrum esculentum): flowering stem with floral segments. Watercolour.
  • Seaside grape (Coccoloba uvifera): fruiting stem and floral segments. Coloured etching by J. Pass, c. 1801, after J. Ihle.
  • A plant (Polygonum orientale): flowering stem. Coloured engraving, c. 1792.
  • Solomon's seal (Polygonatum multiflorum): rootstock. Watercolour.
  • A ground-cover plant (Polygonum vacciniifolium): flowering stem. Coloured zincograph by C. Rosenberg, c. 1850, after himself.
  • Water pepper plant (Polygonum hydropiper) and two square segments of a gel-like substance. Watercolour.
  • Two species of dock (Rumex species): flowering stems with leaf and rhizome. Coloured lithograph by W. G. Smith, c. 1863, after himself.
  • Redleg plant (Polygonum persicaria): flowering stem. Chromolithograph, c. 1877, after F. E. Hulme.
  • Chinese or Turkish rhubarb (Rheum palmatum): flowering and fruiting stem with leaf. Coloured zincograph after M. A. Burnett, c. 1842.
  • A plant (Oxyria digyna): flowering and leafy stem. Coloured lithograph by F. Waller, c. 1863, after C. Gower.
  • Two species of knotweed (Polygonum species): flowering stems. Coloured lithograph by W. G. Smith, c. 1863, after himself.
  • Two species of dock (Rumex species): flowering stems with leaves. Coloured lithograph by W. G. Smith, c. 1863, after himself.
  • 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.
  • Five flowering plants, including water pepper (Polygonum hydropiper) and redleg (Polygonum persicaria). Chromolithograph by W. Dickes & co., c. 1855.
  • Four 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.
  • 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.
  • A galled tree (Mimosa cinerea), a Jamaica pepper tree (Pimenta dioica) and a Turkey rhubarb plant (Rheum palmatum). Coloured engraving, c. 1827.
  • Six British wild flowers, including water pepper and knotweed (Polygonum species). Coloured lithograph, c. 1846, after H. Humphreys.
  • Rheum palmatum (Chinese or Turkey rhubarb).