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378 results filtered with: Petal
  • Orchid labellum (Phalaenopsis sp.)
  • Papaver somniferum L. Papaveraceae Opium Poppy Distribution: Asia minor, but has been dated to 5000BC in Spanish caves. Now grows almost everywhere. The oldest medicine in continuous use, described in the Ebers' papyrus (1550 BC), called Meconium, Laudanum, Paregoric and syrup of poppies. Culpeper (1650) on Meconium '...the juyce of English Poppies boyled till it be thick' and 'I am of the opinion that Opium is nothing else but the juyce of poppies growing in hotter countries, for such Opium as Authors talk of comes from Utopia [he means an imaginary land, I suspect]’. He cautions 'Syrups of Poppies provoke sleep, but in that I desire they may be used with a great deal of caution and wariness...' and warns in particular about giving syrup of poppies to children to get them to sleep. The alkaloids in the sap include: Morphine 12% - affects ?-opioid receptors in the brain and causes happiness, sleepiness, pain relief, suppresses cough and causes constipation. Codeine 3% – mild opiate actions – converted to morphine in the body. Papaverine, relaxes smooth muscle spasm in arteries of heart and brain, and also for intestinal spasm, migraine and erectile dysfunction. Not analgesic. Thebaine mildly analgesic, stimulatory, is made into oxycodone and oxymorphone which are analgesics, and naloxone for treatment of opiate overdose – ?-opioid receptor competitive antagonist – it displaces morphine from ?-opioid receptors, and reverses the constipation caused by opiates. Protopine – analgesic, antihistamine so relieves pain of inflammation. Noscapine – anti-tussive (anti-cough). In 2006 the world production of opium was 6,610 metric tons, in 1906 it was over 30,000 tons when 25% of Chinese males were regular users. The Opium wars of the end of the 19th century were caused by Britain selling huge quantities of Opium to China to restore the balance of payments deficit. Laudanum: 10mg of morphine (as opium) per ml. Paregoric: camphorated opium tincture. 0.4mg morphine per ml. Gee’s Linctus: up to 60 mg in a bottle. J Collis Browne’s chlorodyne: cannabis, morphine, alcohol etc. Kaolin and Morph. - up to 60 mg in a bottle. Dover’s Powders – contained Ipecacuana and morphine. Heroin is made from morphine, but converted back into morphine in the body (Oakeley, 2012). One gram of poppy seeds contains 0.250mgm of morphine, and while one poppy seed bagel will make a urine test positive for morphine for a week, one would need 30-40 bagels to have any discernible effect. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Prunus incisa 'Kojo-no-mai'
  • Dierama pulcherrimum Baker Iridaceae. Angel's Fishing rods, African harebell.. Herbaceous perennial. Distribution: South Africa. Said to be used in South African Muthi medicine, but no references found other than it being grown at the Medicinal Garden of the University of Washington and the Royal College of Physicians, London. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • 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.
  • Tiger Lily
  • Viburnum japonicum Spreng. Caprifoliaceae Distribution: Evergreen Shrub. Distribution: Japan and Taiwan. No medicinal uses. The fruit is a 'famine food' eaten when all else fails. As other seeds/fruits of Viburnum species are listed as poisonous, and none are listed as 'edible', one can assume that the seeds/fruits of V. japonicum are also toxic. It does not appear vulnerable to pests or molluscs which may be due to irioid glycosides that are present in this genus produced as a defence against herbivores, fungi and bacteria. They have a bitter taste. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Erythrina crista-galli L. Fabaceae. Cockspur coral tree. Distribution: South America. The national tree of Argentina, its flowers are pollinated by perching birds unlike many other species which are pollinated by humming birds. An extract from the bark is used as a powerful soporific, also as a gargle for sore throats and in the treatment of cuts, rheumatism and hepatitis, in Brazil (Mors, 1998). The seed contains the alkaloid beta-erythroidine. Analgesics, antimicrobial and anti inflammatory substances are being sought from the leaves. Curare-like action in rats has been reported from the seeds. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Reineckea carnea Kunth. Convallariaceae Distribution: China Named for Joseph Heinrich Julius Reinecke (1799-1871) of Berlin (Stearn, 1994). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Ecballium elaterium (L.)A.Rich. Benincaseae Squirting cucumber - when ripe, the seed explodes from its case, squirting some distance. Distribution: Asia, Europe and N. Africa. Contain cucurbitacins which are very bitter, cytotoxic and poisonous. A restricted herbal product, only to be supplied in registered pharmacies or under the supervision of a pharmacist (UK Medicines and Healthcare Products Regulatory Agency (MHRA)). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Magnolia 'Black Diamond'
  • Papaver rhoeas L. Papaveraceae Corn Poppy, Flanders Poppy. Distribution: Temperate Old World. Dioscorides (Gunther, 1959) recommended five or six seed heads in wine to get a good night's sleep the leave and seeds applied as a poultice to heal inflammation, and the decoction sprinkled on was soporiferous. Culpeper (1650) ' ... Syrup of Red, or Erratick Poppies: by many called Corn-Roses. ... Some are of the opinion that these Poppies are the coldest of all other - believe them that list [who wish to]: I know no danger in this syrup, so it be taken in moderation and bread immoderately taken hurts
  • 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.
  • Tulipa hybrid
  • Anthyllis vulneraria L. Fabaceae. Kidney vetch, woundwort. 'vulneraria' means 'wound healer'
  • Teucrium scorodonia 'Crispum Marginatum' L. Lamiaceae Distribution: Europe Teucrium is named after king Teucer (who lived in the era between 1400 and 1000 BC) the first King of Troy. Dioscorides named a medicinal herb after Teucer, and Linnaeus consolidated this in 1753. Probably the Scordium or Water Germander. It was given very similar properties. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Foxglove (Digitalis purpurea), X-ray
  • Iris unguicularis Poir. Iridaceae. Algerian iris. Rhizomatous perennial. Distribution: NW Africa, E. Mediterranean It has scientifically-based potential. The rhizomes contain the chemical kaempferol which inhibits the enzyme alpha-glucosidase in the gut, reducing the rate of glucose absorption. This could be used to prevent the dangerous peaks of blood sugar that occur in diabetics and reduce eye and kidney complications. The unprocessed rhizome contains iridin, a toxic glycoside, which causes 'nausea, vomiting, diarrhoea and skin irritation'. 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.
  • Salvia coahuilensis Fernald Lamiaceae Coahuila Sage. Perennial shrub. Distribution: Mexico. Most of the historical medicinal literature is on common sage, Salvia officinalis. The name Salvia meaning 'healthy'. Elizabeth Blackwell (1737) wrote that it had "... all the noble Properties of the other hot Plants more especially for the Head, Memory, Eyes, and all Paralytical Affections. In short, 'tis a Plant endu'd with so many and wonderful Properties, as that the assiduous use of it is said to render Men Immortal" with which Hans Sloane agreed. Its health giving properties were recorded in the aphorisms of the School of Salerno (fl 9-13th century) - quoted in the Decameron [c.1350, translated: Why should man die when Salvia grows in the Garden']. Some salvias, such as Salvia divinorum contain hallucinogenic compounds. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Illicium verum Hook.f. Illiciaceae Chinese Star Anise Distribution: China. Illicium anisatum Japanese Star Anise. Distribution Japan. Illicium verum is used as a spice in Asian cooking and for Star Anise tea. The distilled oil is added to cough mixture used by children. Introduced to Europe in 1588 (Pharmacographia Indica, 1890). Illicium anisatum syn. religiosum, has been confused with it (Lindley, 1838, Bentley 1861) but is poisonous and was used to make incense in Japanese and Chinese temples. It was called Skimi by Kaempfer. The seed pods of both species contain shikimic acid (the name being derived from the Japanese word for the plant - shi-kimi) from which Tamiflu, the antiviral drug was synthesised. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Eucomis comosa (Houtt.)H.R.Wehrh. Hyacinthaceae Pineapple flower. From the Greek eu comis meaning 'good hair' referring to the tuft of leaves on top of the flowers. Comosa being Latin for 'with a tuft' referring to the same thing. Used in South African 'muthi' medicine. Enemas of Eucomis autumnalis are used in Africa to treat low backache, to aid postoperative recovery and to speed the healing of fractures. Decoctions are taken for the treatment of everything from hangovers to syphilis. The active ingredients include homisoflavones, which have anti-inflammatory and antispasmodic activity (van Wyk et al, 2000). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Epimedium grandiflorum 'Lilafee'
  • 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.
  • 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.
  • Hylotelephium telephium syn. Sedum telephium 'Matrona'
  • Paeonia suffruticosa 'Chang Zhi Hong'
  • Lamium orvala L. Lamiaceae Balm-leaved red deadnettle. Orvala is the Latinised name for the French name, orvale, for Salvia sclarea Distribution: Southern Europe. I can find no information about it. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Gardenia jasminoides J.Ellis Rubiaceae. Cape jasmine - as erroneously believed to have come from South Africa. Distribution: China. Named for Dr Alexander Garden FRS (1730-1791) Scottish-born physician and naturalist who lived in Charles Town, South Carolina, and corresponded with Linnaeus and many of the botanists of his era. The fruits are used in China both as a source of a yellow dye, and for various unsubstantiated medicinal uses. Other species of Gardenia are found in tropical Africa and the roots and leaves have all manner of putative uses. Gardenia tenuifolia is used as an aphrodisiac, for rickets, diarrhoea, leprosy, gall bladder problems, toothache, liver complaints, diabetes, hypertension, malaria and abdominal complaints. It causes violent vomiting and diarrhoea. It, and other species, are used to poison arrows and to poison fish. Some native, muthi medicine, healers regard Gardenia as a ‘last chance’ medicine, given to patients when all else fails – the patient either dies or recovers (Neuwinger, 1996). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Senna corymbosa (Lam.)H.S.Irwin&Barneby Caesalpinaceae. Argentine Senna. Distribution: Argentine (other species from Europe). This beautiful shrub that flowers from midsummer until the frosts of winter, is the source of one of the best known of all herbal medicines – Senokot (and senna pods and senna tea), introduced to European medicine (as Senna alexandrina from Egypt) by the Arabians. Every part of the plant contains anthraquinones which, if taken internally, act as a powerful laxative to treat constipation by stimulating the nerve cells of the large bowel. Gerard (1633) notes ‘it is a singular purging medicine’ with over a page on its uses. When used regularly the nerves to the large bowel may be destroyed, leaving a permanently dilated large bowel that never functions properly again. This is a plant which causes the condition it treats to become permanent. Additionally, with prolonged use, the lining of the bowel turns black, serum potassium levels may fall, resulting in cardiac irregularities and sometimes death. Coma, neuropathy and hepatitis have also been reported. It is advertised on television (the actor involved is seen to be depressed and bloated until she takes Senokot, after which she is happy - Hippocrates would have attributed this antidepressant effect to the plant's ability to purge her of the black melancholic humour present in her bowel motions). It is available without prescription or health warning against long-term use. What do you think? Lyte (1578) recommends it strongly for depression, but one might claim to be cured rather than take it again. Photographed in the Medicinal Garden of the Royal College of Physicians, London.