408 results filtered with: Poison
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Cistus incanus ssp creticus Juss. Cistaceae. Rock Rose. Distribution: Crete. Interesting symbiosis with fungus called Tuber melanosporum which increases nutrient absorption for the plant and inhibits growth of other plants in the vicinity. It is a source of the resin ‘labdanum’ (a.k.a. ‘ladanum’) used in perfumes (similar smell to ambergris), as is Cistus ladanifer. It has no medical uses now, and such use was dwindling even in the 18th century. In the 16th century (Henry Lyte’s 1575 translation of Rembert Dodoen’s Cruydeboeck of 1554) its uses were described (directly copied from Dioscorides’ Materia Medica (70AD)) as: ‘Ladanum dronketh with olde wine, stoppeth the laske [periods], and provoketh urine. It is very good against the hardness of the matrix or mother [uterus] layde to in the manner of a pessarie, and it draweth down the secondes or afterbirth, when it is layde upon quicke coles [hot coals], and the fumigation or parfume thereof be received up into the body of women. // The same applied to the head with Myrrhe and oyle of Myrrhe, cureth the scurffe, called Alopecia, and keepeth the heare [hair] from falling of [sic], but whereas it is already fallen away, it will not cause the heare to growe agayne. // ...' and goes on in this vein about its uses for pain in the ears, and removing sores and scars and other things. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Dahlia merckii
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Acer japonicum Thunb. Sapindaceae. Japanese maple. Small tree. Distribution: Japan, North Korea. Can be tapped in early spring for its sugar-rich sap although it is not as abundant as in Acer saccharum. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Hamamelis x intermedia 'Jelena'
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Cistus ladanifer L., Cistaceae. Common Gum Cistus or Ladanum/labdanum. Distribution: Southern Europe and N. Africa. The fragrant resin from the sticky leaves, Gum Labdanum, is extracted and used in Mediterranean regions as an insecticide and deodorant ((Lewis & Elvin-Lewis, 2003). Lyte (1578) advises local application to prevent hair loss and cure earache
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Callicarpa bodinieri var giraldii 'Profusion'
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Valeriana officinalis L. Valerianaceae Valerianus, Phu, Nardus sylvestris, Setwal. Distribution: Europe. Popular herbalism attributes sedation to Valerian, but this is not mentioned by Coles (1657) or Gerard (1633) or Lobel (1576) or Lyte (1578) or Dioscorides (ex Gunther, 1959) or Fuchs (1553), where he quotes Pliny, Dioscorides and Galen, or Parkinson (1640), or Pomet (1712). The English translation of Tournefort (1719-1730) covers a whole page of the uses of all the different valerians, but never mentions sedation or treating anxiety. Quincy (1718) does not mention it. Because it was used in epilepsy, for which Woodville (1792) says it was useless, Haller, in his Historia stirpium indegenarum Helvetae inchoatae (1768) advocates it for those with irritability of the nervous system, as does Thomson's London Dispensatory (1811) although he lists it as an 'antispasmodic and stimulant' and for inducing menstruation. Lindley (1838) notes (as many did) that the roots smell terrible and that this makes cats excited, and in man, in large doses, induce 'scintillations, agitation and even convulsions' so used in asthenic fever, epilepsy, chorea, hysteria and as an antihelminthic.' Fluckiger & Hanbury (1879) give a wonderful account of the history of its names, but give its use as 'stimulant and antispasmodic' as do Barton & Castle (1877). but by 1936 (Martindale's Extra Pharmacopoeia) its only use was 'Given in hysterical and neurotic conditions as a sedative. Its action has been attributed to its unpleasant smell'. The European Medicines Agency (2006) approves its use as a traditional herbal medicine for mild anxiety and sleeplessness for up to 4 weeks. Despite what is written continuously about its use in ancient Greece and Rome, the only reason for its use has been because it was thought, for a brief while, to be good for epilepsy and therefore might deal with persons of a nervous disposition because of its foul smell. It has been suggested that even its Greek name, 'Phu' came from the expression of disgust which is made when one sniffs an unpleasant odour. For 1,800 years, before the last century, no-one had thought it sedative. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Hesperantha coccinea 'Major' syn Schizostylis coccinea
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Argemone mexicana L. Papaveraceae. Mexican poppy
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Tricyrtis formosana subsp. stolonifera
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Asarum caudatum Lindl. Aristolochiaceae. British Columbia wild ginger. Asarum is the Latin name for wild ginger
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Nandina domestica Thunb. Berberidaceae. Heavenly bamboo. Distribution: Asia. It contains cyanogenic glycosides which liberate hydrogen cyanide when damaged. Nothing eats it. Pharmacists have also found a chemical in the sap, called nantenine, which is a potential antidote to poisoning by ecstasy with which it shares the same molecular shape. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Cichorium intybus L., Asteraceae. Chicory, succory. Distribution: Uses: 'Cichory, (or Succory as the vulgar call it) cools and strengthens the liver: so doth Endive' (Culpeper, 1650). The Cichorium sylvestre, Wilde Succorie, of Gerard (1633) and the leaves cooked into a soup for ill people. Linnaeus (1782) reported it was used for Melancholia, Hypochondria, Hectica [fever], haemorrhage and gout. Root contains 20% inulin, a sweetening agent. Dried, roasted and ground up the roots are used as a coffee substitute, best known as Camp coffee (Chicory and Coffee essence). This used to be sold in tall square section bottle with a label showing a circa 1885 army tent with a Sikh soldier standing and serving coffee to a seated officer from the Gordon Highlanders. The bottle on the label has now moved on, and since 2006 it shows the same tent but the Sikh and the Scot are now both seated, drinking Camp coffee together. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Ruscus aculeatus L. Ruscaceae Butchers Broom., Box holly, Knee Holly, Jew’s myrtle. Distribution: Mediterranean to Britain. Aculeatus means 'prickly' which describes the plant well. Dioscorides in 70 AD (Gunther, 1959) says of this plant ‘... ye leaves and berries drunk in wine have ye force to move urine, expel the menstrua, and to break ye stones in ye bladder ...’ and adds also ‘ ... it cures also ye Icterus and ye strangurie and ye headache.' Its use did not change for a millennium and a half
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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.
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Pinus mugo Turra, Pinaceae Mountain pine. Distribution: Mountain regions in south and central Europe. Source of pine cone syrup used in cooking. Pine trees in general have a small edible pine nut in the pine cone, which Lyte (1578) writes are 'good for the lungs, they cleanse the breast, and cause the fleme to be spit out: also they nourish well and engender good blood, and for this cause they are good for such as have the cough.' He wrote that it was used for burns, wounds, dysentery, and as a diuretic. Quincy says of fir (Pinus) cones that they strengthen the genital parts, and increase the quantity of seed, or increase Desire without adding to Ability or Performance. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Paeonia suffruticosa 'Bai Yu'
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Saponaria officinalis 'Alba Plena'
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Prunella vulgaris L. Lamiaceae Self Heal, Carpenter’s Herb, Sicklewort, Consolida minor. Distribution: Europe. Culpeper (1650): ‘See Bugle. So shall I not need to write the same thing twice, the vertues being the same.’ Under Bugle he writes: ‘Bugula. Bugle or middle Comfrey ... excellent for falls or inward bruises, for it dissolves congealed blood, profitable for inward wounds, helps the rickets and other stoppings of the Liver, outwardly it is of wonderful force in curing wounds and ulcers, though festered, as also gangrenes and fistulas, it helps broken bones and dislocations. To conclude, let my countrymen esteem it as a Jewel...’ Bugle is Ajuga reptans which has the same creeping habit, but is in another genus. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Punica granatum L. Lythraceae Pomegranate, granatum malum, balustines. Distribution: E. Mediterranean to Himalayas. The Pomegranate is in the centre of the Arms of the Royal College of Physicians, perhaps for its use in cooling, and therefore for fevers. However it was the sour pomegranate that would have been used as Dioscorides says the sweet ones are unfit for use in agues. Culpeper (1650) makes no mention of the fruit, but says of the flowers ‘... they stop fluxes and the Terms in women.’ In the Complete Herbal and English Physician (1826) says the fruit ‘... has the same general qualities as other acid fruits.’ Of the flowers he says (among other properties) that ‘A strong infusion of these cures ulcers in the mouth and throat, and fastens loose teeth.’ Gerard (1633) says that the cravings of pregnant women can be abolished with the juice, and perhaps it was scurvy which was being treated effectively when he reports that the juice was very effective against splitting of blood and for loose teeth. The dwarf form of this species, Punica granatum var. nana has fruits no more than 3cm across. Pomegranate bark can only be sold by registered pharmacies in the UK and used to be used as a vermifuge, with the secondary use that the tincture made from it doubled as a permanent ink. In South Africa the fruit rind is used for diarrhoea and stomach ache, and the bark as a vermifuge, but undesirable side effects make this dangerous. It is reported to be effective against fevers, as a diuretic, to lower blood sugar and to be both antibacterial and antiviral (van Wyk, 2000). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
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Rosa rugosa 'Fru Dagmar Hastrup'
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Crocosmia x crocosmiiflora 'Emily McKenzie'
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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
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Paeonia officinalis 'Flore Pleno'
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Datura stramonium (Thornapple). Also called Jimsonweed
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