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  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Sketches towards a Hortus botanicus americanus, or, Coloured plates (with a catalogue and concise and familiar descriptions of many species) of new and valuable plants of the West Indies and North and South America : Also of several others, natives of Africa and the East Indies; arranged after the Linnaean system.
  • Tellima grandiflora (Pursh)Lindl. Saxifragaceae Distribution: Western North America from Alaska to California. The Native American Skagit tribe from Washington State, used it to improve appetite. The Nitinaht used it to stop having dreams of sexual intercourse with the dead (Moerman, 1998), Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Aralia spinosa L. Araliaceae. Devil's walking stick, Prickly ash, Hercules' club. Tree. Distribution: Eastern North America. Contact with sap causes skin irritation, raw berries mildly toxic to humans, causing diarrhoea and vomiting. Eaten by bears. Used medicinally by Native Americans for a variety of conditions. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Eschscholzia californica Cham. Papaveraceae. Californian poppy. Named for German botanist and physician, Johan Friedrich von Eschscholtz (1793-1831). Distribution: North America. Official state flower of California. Contains berberine, considered a potential source for many new medicines, and numerous alkaloids some of which may have mild anxiolytic activity. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Achillea millefolium L. Asteraceae. Yarrow or sneezewort, the latter because ground up it made a snuff to induce sneezing. Evergreen, herbaceous perennial. Distribution: Europe, Asia and North America. Dioscorides calls it Achilles’ woundwort, sideritis, writing that the ground-up foliage closes bleeding wounds, relieves inflammation and stops uterine bleeding. Gerard (1633) says that put up one’s nose it causes a nosebleed and so stops migraines. Named for the Greek warrior, Achilles, who used this plant for healing wounds – having been taught its properties by his teacher, Chiron the centaur. Millefolium because of the thousands of fronds that make up the leaf, and which, when applied to a bleeding wound, facilitate coagulation by platelets. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Rhodiola rosea L. Crassulaceae Golden root, roseroot Distribution: Arctic, Eastern North America, mountains of central Asia. Herbalists regard it as having curative properties for diseases as diverse as cancer, influenza, depression and other conditions. It has not been licensed for use in manufactured herbal medicines in the UK. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Allium schoenoprasum L. Alliaceae. Chives. Bulbour perennial herb. 'schoenoprasm' means 'rush leek' in Greek, referring to the narrow leaves. Distribution: Asia, Europe and North America. Leaves used as a garnish on cooked food and in salads. However like others in Boraginaceae it contains the pyrrolizidine alkaloid cynoglossine which causes liver damage. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Smilacina racemosa Desf. syn. Maianthemum racemosum (L.)Link Convallariaceae. False Spikenard, False Solomon's Seal, Scurvy berries, Treacle berries. Herbaceous perennial. Distribution: North America. Probably introduced to England by John Tradescant the Younger in 1656 as it appears in his garden plant catalogue in Musaeum Tradescantianum in 1656. Austin (2004) reports on Native American traditional usage: a cold infusion of the roots was used for sore eyes (Cherokee)
  • Trillium sessile L. Trilliaceae Distribution: North America. Various Trilliums were used by Native Americans to stop haematuria, haematemesis, menorrhagia, and to heal ulcers (Milspaugh, 1974). Roots were eaten to treat stiff muscles, and tea from the plant drunk and powdered plant put on joints for rheumatism by the Iroquois (Lewis & Elvin-Lewis, 2003). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Opuntia humifusa Raf. Cactaceae Eastern prickly pear, Indian fig. Distribution: Eastern North America. Stearns (1801) reports 'OPUNTIA a species of cactus. The fruit is called the prickly pear. If eaten it turns the urine and milk in women's breast red'. This is likely to be Opuntia robusta. The ripe fruits are reported edible, raw, and the leaf pads also, either raw or cooked. The fine spines, glochids, cause severe skin irritation so should be wiped off or burnt off prior to cooking and eating. Moerman (1998) reports that O. hemifusa was widely used by Native American tribes for wounds, burns, snakebite, warts (fruit), and as a mordant for dyes used on leather. Widely used, with the spines removed, as a famine food, and dried for winter use. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Opuntia humifusa Raf. Cactaceae Eastern prickly pear, Indian fig. Distribution: Eastern North America. Stearns (1801) reports 'OPUNTIA a species of cactus. The fruit is called the prickly pear. If eaten it turns the urine and milk in women's breast red'. This is likely to be Opuntia robusta. The ripe fruits are reported edible, raw, and the leaf pads also, either raw or cooked. The fine spines, glochids, cause severe skin irritation so should be wiped off or burnt off prior to cooking and eating. Moerman (1998) reports that O. hemifusa was widely used by Native American tribes for wounds, burns, snakebite, warts (fruit), and as a mordant for dyes used on leather. Widely used, with the spines removed, as a famine food, and dried for winter use. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Echinacea purpurea (L.) Moench Asteraceae. Coneflower. Distribution: North America. Austin (2004) records that the roots were chewed, or used as a tincture for coughs by the Choctaw. Combined with Rhus typhina to treat venereal disease by the Delaware. Very little record of this being used by Native Americans, who used E. angustifolia very widely - Regarded as a panacea and magical herb. This and E. pallida were used to treat snakebite, spider bite, cancer, toothache, burns, sores, wounds, flu and colds. E. purpurea in modern times has been used as an ‘immunostimulant’, but is known to cause a fall in white cell count, and to be purely a placebo. Licensed for use as a Traditional Herbal Medicine, which does not require proof of efficacy, in the UK. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Camassia leichtlinii (Baker)S.Watson Hyacinthaceae. Great Camas, Quamash. The species was named for Maximillian Leichtlin (1831-1910 of Baden , Germany, bulb enthusiast who corresponded with J.G. Baker at Kew. Bulbous herb. Distribution: North America. The bulbs of Camassia species were eaten by the Native Americans, the Nez Perce, after cooking by steaming for a day - which suggests they may be poisonous raw. They gave them to the American explorers, Meriwether Lewis and William Clerk, on their expedition (1804-1806) when they ran out of food. The bulbs of the similar looking 'Death camus', Toxicoscordion venenosum have been fatal when ingested by mistake (RBG Kew on-line). Steroidal saponins, which are precursors in the manufacture of steroids and cytotoxic activity has been detected in the sap of the bulbs. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Rudbeckia triloba L. Asteraceae Orange Cone flower. Herbaceous perennial. Distribution: North America. It is named for Olof Rudbeck, father (1630–1702) and son (1660–1740). Olof Rudbeck the Elder was professor of medicine at Uppsala University, and established a botanic garden there. He was the discoverer of the human lymphatic system. His son succeeded his father as professor of medicine, and one of his students was Carl Linnaeus (1707–88) who named the genus Rudbeckia after him and his father. It is a plant which is poisonous to cattle, sheep and pigs with no medicinal uses. Austin (1974) discusses R. hirta, also regarded as a toxic plant. It was used externally by the Cherokee to bathe sores and snakebites and made into a tea for treating diarrhoea. The Seminoles used it for headaches and fever and the Miccosukee for sunstroke and headache. The Cherokee and the Iroquois used it to treat intestinal worms Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Silphium perfoliatum L. Asteraceae Indian Cup. Distribution: North America. Austin (2004) records that another species, S. compositum, was used by Native Americans to produce a chewing gum from the dried sap of the roots, and Native American medicinal uses for 'Indian Cup' are probably referrable to S. compositum and not S. perfoliatum. Silphium perfoliatum contains enzymes that inhibit trypsin and chymotrypsin which gives it resistance to fungal, bacterial and insect attacks. Male gall wasps (Antisotrophus rufus) alter the chemistry of the plant to enable them to locate females, making it a 'signpost' plant. The gall wasp lays its eggs in the stem of Silphium laciniatum, to provide food for the larva on emergence, and the galls containing a male or a female wasp will cause the plant to give off a different chemical odour. Emerging male wasps can search for female wasps, which emerge later, by locating this chemical fragrance which acts as a sex pheromone proxy (Tooker et al Proc Natl Acad Sci U S A. 2002 Nov 26
  • Tragopogon pratensis L. Asteraceae. Goatsbeard, Salsify, Jack-go-to-bed-at-noon. Distribution: Europe and North America. This is the Tragopogion luteum or Yellow Goats-beard of Gerard (1633) who recommended them boiled until tender and then buttered as being more delicious than carrots and parsnips and very nutritious for those sick from a long lingering disease. Boiled in wine they were a cure for a 'stitch' in the side. In the USA children collect the milky sap onto a piece of glass and, when dry, chew it as bubble-gum. The name 'Jack-go-to-bed-at-noon' referes to the flowers which close at noon and the spherical radiation of seed plumules which then appear. Salsify is now applied as a name for T. porrifolius and Scorzonera hispanica. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Tragopogon pratensis L. Asteraceae Goats beard, Salsify, Jack-go-to-bed-at-noon. Distribution: Europe and North America. This is the Tragopogion luteum or Yellow Goats-beard of Gerard (1633) who recommended them boiled until tender and then buttered as being more delicious than carrots and parsnips and very nutritious for those sick from a long lingering disease. Boiled in wine they were a cure for a 'stitch' in the side. In the USA children collect the milky sap onto a piece of glass and, when dry, chew it as bubble-gum. The name 'Jack-go-to-bed-at-noon' referes to the flowers which close at noon and the spherical radiation of seed plumules which then appear. Salsify is now applied as a name for T. porrifolius and Scorzonera hispanica. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Echinacea purpurea (L.) Moench Asteraceae. Coneflower. Distribution: North America. Austin (2004) records that the roots were chewed, or used as a tincture for coughs by the Choctaw. It was combined with Rhus typhina to treat venereal disease by the Delaware. Very little record of this being used by Native Americans, who used E. angustifolia very widely - Regarded as a panacea and magical herb. This and E. pallida were used to treat snakebite, spider bite, cancer, toothache, burns, sores, wounds, flu and colds. E. purpurea in modern times has been used as an ‘immunostimulant’, but is known to cause a fall in white cell count, and to be purely a placebo. Licensed for use as a Traditional Herbal Medicine, which does not require proof of efficacy, in the UK. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Tragopogon pratensis L. Asteraceae. Goatsbeard, Salsify, Jack-go-to-bed-at-noon. Distribution: Europe and North America. This is the Tragopogion luteum or Yellow Goats-beard of Gerard (1633) who recommended them boiled until tender and then buttered as being more delicious than carrots and parsnips and very nutritious for those sick from a long lingering disease. Boiled in wine they were a cure for a 'stitch' in the side. In the USA children collect the milky sap onto a piece of glass and, when dry, chew it as bubble-gum. The name 'Jack-go-to-bed-at-noon' referes to the flowers which close at noon and the spherical radiation of seed plumules which then appear. Salsify is now applied as a name for T. porrifolius and Scorzonera hispanica. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Echinacea purpurea (L.) Moench Asteraceae. Coneflower. Distribution: North America. Austin (2004) records that the roots were chewed, or used as a tincture for coughs by the Choctaw. It was combined with Rhus typhina to treat venereal disease by the Delaware. Very little record of this being used by Native Americans, who used E. angustifolia very widely - Regarded as a panacea and magical herb. This and E. pallida were used to treat snakebite, spider bite, cancer, toothache, burns, sores, wounds, flu and colds. E. purpurea in modern times has been used as an ‘immunostimulant’, but is known to cause a fall in white cell count, and to be purely a placebo. Licensed for use as a Traditional Herbal Medicine, which does not require proof of efficacy, in the UK. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Echinacea purpurea (L.) Moench Asteraceae. Coneflower. Distribution: North America. Austin (2004) records that the roots were chewed, or used as a tincture for coughs by the Choctaw. It was combined with Rhus typhina to treat venereal disease by the Delaware. Very little record of this being used by Native Americans, who used E. angustifolia very widely - Regarded as a panacea and magical herb. This and E. pallida were used to treat snakebite, spider bite, cancer, toothache, burns, sores, wounds, flu and colds. E. purpurea in modern times has been used as an ‘immunostimulant’, but is known to cause a fall in white cell count, and to be purely a placebo. Licensed for use as a Traditional Herbal Medicine, which does not require proof of efficacy, in the UK. Licensed as a Traditional Herbal Remedy in the UK (Medicines and Healthcare Products Regulatory Agency (MHRA)). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Hepatica nobilis Mill. Ranunculaceae. Liverwort - not to be confused with the lichen of the same name. Distribution: North America. Liverwort (‘liver plant’): discontinued herbal medicine for disorders of the liver. The name and the use to which the Liverworts have been put medicinally is suggested, according to the doctrine of signatures, by the shape of the leaves which are three-lobed, like the liver. It is little used in modern herbalism but was employed in treating disorders of the liver and gall bladder, indigestion etc. It is highly toxic. Hepatica acutiloba was widely used for liver disorders in the 1880s, with up to 200,000 kilos of leaves being harvested per annum to make liver tonics - which eventually caused jaundice. Gerard (1633) calls it Hepaticum trifolium, Noble Liverwort, Golden Trefoile and herbe Trinity and writes: 'It is reported to be good against weakness of the liver which proceedeth from a hot cause, for it cooleth and strengtheneth it not a little. ' He adds ' Baptista Sardus[a Piedmontese physician fl. 1500] commendeth it and writeth that the chiefe vertue is in the root