EUROPEAN LABURNUM: PRETTY BUT POISONOUS: HISTORY OS USES OF LABURNUM

LABURNUM, LABURNUM ANAGYROIDES

The laburnum tree is cultivated widely in Europe, particularly in Britain, because of its yellow flowers which hang in clusters but which later give way to poisonous seeds. I once lived close to one of these trees and can say that nothing could grow under it. It is a member of the Leguminoseae or Fabaceae family and so is related to the Indian laburnum or amaltas, carob, peas, beans such as the green bean, borlotti bean, soya beans, chickpeas and choliya, the tree from which we get gum Tragacanth, the butterfly pea, the trees, dhak, jhand, the Indian coral tree, the Borneo or Pacific teak, the Lead tree (Ipil –Ipil), the pongam tree, the monkey pod tree, ashoka, indigo, lentils, alfalfa, field restharrow and a whole host of other plants.

  A botanical synonym is Cytisus laburnum, so it is a close relative of broom, Cytisus scoparius.

  It looks very pretty, but it is poisonous and should be treated with care. It is indigenous to the mountainous regions of France, Germany and Switzerland, but can now be seen virtually all over Europe. Unfortunately the seeds can kill animals, and people. They contain the poisonous alkaloid, cystine, which may be a perfect insecticide, but cannot be used, for example to kill head lice in children (as can Stavesacre or Lousewort) because it may be absorbed through the skin. The poisoning can be fatal from ingestion of this plant, although there are some reports that this can be remedied by administering a violent emetic and then dosing yourself with whiskey or poisoned before having one!)

  It has been suggested that the seeds could be used for whooping cough and asthma, but again this has not been used because of the possibility of death occurring from the dosage which was meant to cure. (This is another plant, like aconite, either Monkshood or wolfsbane, which is best avoided.)

We know that this tree was introduced into England some time before 1597 as John Gerard, the 16^th century apothecary and herbalist, wrote of having one in his garden. He called it Bean trefoil or Anagyris. The laburnum tree is called Faux ébénier in French - False ebony as its wood is used instead of ebony. It is hard and durable but coarse-grained and need to be highly polished. However it is used by turners and may be used for furniture or decorative items.

  This tree may be attractive when it is in flower, but if you have one near you – take care!

STAVESACRE - INSECTICIDE, BUT POISONOUS: HISTORY, USES AND HEALTH BENEFITS OF STAVESACRE

STAVESACRE, LOUSEWORT, DELPHINIUM STAPHISAGRIA 

Stavesacre is a really pretty tall flowering plant which is highly toxic. It contains diterpene alkaloids which can prove fatal. The symptoms begin with euphoria, followed by depression and extreme sensitivity of the nerves, then paralysis, the slowing of the pulse and respiration until finally it causes death by asphyxiation. It acts in much the same way as Monkshood or aconite (also blue-flowered).

  Stavesacre is clearly a corruption of its Latin name, staphisagria (say it and you’ll see how!) It was given the name lousewort, because its main use was to kill parasites, especially head lice in children. It was much used in the Middle Ages, when there were hygiene issues!

  Stavesacre is a member of the buttercup family, or Ranunculaceae, making it a relative of Lesser Celandine, marsh marigolds, black cohosh, wood anemones, goldenseal and wolfsbane (another aconite). It is a native of the Mediterranean region and southern Europe, and can grow to around four feet high, so is quite conspicuous.

  The seeds are the main parts used, and these are collected and dried for later use, although given the toxicity of this plant is best left alone. It was known to Dioscorides and Pliny who both mention its use as a purgative and for killing parasites and insects externally. It has been used for skin problems and was thought to be an effective wart remover.

  Nicholas Culpeper, the 17^th century English herbalist had this to say about it: -

“Government and virtues. It is seldom given inwardly, being of a hot burning taste, though Sylvius de la Boe commends it from gr. xii. to a scruple in a dose, which purges upwards and downwards, causing a great flux of spittle; and is serviceable against the lues neverea. It is sometimes used in masticatories and gargarisms for the toothach. The vulgar use the powder of it to kill lice. The seeds are kept by the druggists, and they have been given in small doses against rheumatic and venereal disorders; they vomit and purge, and that in so rough a manner, that it is better to omit their internal use entirely. Chewed in the mouth, they excite a very large discharge of watery humours from adjacent parts, and frequently prove serviceable in disorders of the head; but they are chiefly used to destroy lice in children's heads, for this purpose the seeds coarsely powdered are to be strewed among the hair, and it never fails of destroying them.”

BIG-LEAF MAHOGANY- PRIZED FOR ITS WOOD: HEALTH BENEFITS AND USES OF BIG-LEAF MAHOGANY

BIG-LEAF MAHOGANY, SWIETENIA MACROPHYLLA

Mahogany has been valued for its high-quality durable timber since the 16^th century. This tree, the big-leaf mahogany is native to Central and South America. In these countries there is a ban on its timber as it is now on the CITES list and the mahogany that is sold now comes from plantations in the Asia-Pacific region, from Fiji, India, Sri Lanka and other countries. It has been on the IUCN red List since 2003 in its natural range.

  Mahogany wood has a rich, red-brown colour and has been used to make musical instruments, for timber in the construction industry, boat-building and high-quality furniture. However the tree also has medicinal properties.

  In Bolivia the Mesetemo Indians use a decoction of the crushed seeds to bring about an abortion, and use the crushed seeds with the oil from Attalea phalerata for skin problems and children’s skin allergies. They make use of the bark to make dye. In Malaysia the seeds are chewed, or swallowed in powder form to treat high blood pressure, while in India the seeds are also used to treat this as well as diabetes. In India the seeds are also used for diarrhoea. In Indonesia a decoction of the seeds is given against malaria.

  In clinical trials the leaves have been found to have anti-diabetic properties, and to have anti-inflammatory properties as well as perhaps having the potential to help against hepatitis C. Traditional uses have also been upheld for the treatment of diarrhoea and malaria. The leaves have also been found to have some anti-bacterial and anti-microbial properties.

  In some countries a decoction or infusion is made with the crushed seeds for all of the above diseases with honey added to sweeten the concoction. It is said to increase the male libido and so has a reputation as an aphrodisiac, touted in supplements for erectile dysfunctions. However there is no scientific evidence for these claims.

  The tree grows to great heights of 50 metres and can live for 350 years plus. It has white flowers which fall to form the fruit which is very unusual as it is gravity defying – it points upwards, and so is called the sky fruit. This contains a winged seed, which falls quite near the parent tree because of its weight, meaning that mahogany trees tend to form natural stands. The tree sheds its leaves in summer and is a member of the Meliaceae family of plants, so is related to the neem tree, Azadirachta indica, and to the Chinaberry tree, Melia azedarach. The other trees which produce mahogany are Swietenia humilis and Swietenia mahagoni. This one is also known as the bastard mahogany, as opposed to Swietenia mahagoni.

   Deforestation has led to the endangerment of this tree in South America, along with unsustainable logging for its timber. There has been a ban on felling it in Costa Rica since 1997. When the trees are felled this leads to soil degradation and erosion as the roots go deep into the ground and stabilize the soil.

MASTERWORT, ONCE BELIEVED TO HAVE POWERFUL HEALING PROPERTIES: HEALTH BENEFITS AND USES OF MASTERWORT

MASTERWORT, MEISTERWURZ, PEUCEDANUM OSTRUTHIUM 

Masterwort was called “the divine remedy” in the Middle Ages, and believed to be a wonder herb, capable of curing most ailments. Its leaves were used to flavour soups and its root is still used to make Meisterwurzbrand, a liqueur, in the Tyrol region of the Alps.

   It is a member of the Apiaceae or Umbelliferae family of plants, and as such is related to the carrot, celeriac, lovage, opoponax, Alexanders (black lovage), thapsia, cow parsley, sweet Cicely, hemlock, pignuts, lesser and greater burnet saxifrage, ground elder, rock samphire, fennel, sea holly and sanicle, to name just a few of its relatives. It is a close relative of angelica, for which it is sometimes mistaken as it smells very similar. Unfortunately masterwort has a sap in its aerial parts which can cause dermatitis on contact with the skin. It was much used at one time and being a native of Southern Europe, was cultivated in monastery gardens in Britain and Ireland. It is now naturalized in these countries. Its botanical synonym is Imperatoria ostruthium, and another English name for it is Hog’s fennel.

  Hildegard von Bingen mentions it in glowing terms in her “Physica” written between 1150 and 1160, as Astrenica and it was also previously known as Magistranta. All its names reflect the way herbalists thought of it – a powerful remedy.

  It is said to contain myristicin which is supposed to be a psychotropic, found in nutmeg, and responsible for euphoria. The root has been chewed to relieve toothache, and in the USA was once used to calm hysteria and delirium tremens. This is interesting as the root of masterwort was thought to impart strength and courage to its bearer, as well as protection, which was a good thing, as it was believed that if the root were scattered around, any lurking evil spirits would manifest themselves.

  The root is the main part used in medicine, and this is said to be best gathered in spring or autumn and dried for later use.

  Nicholas Culpeper, the English herbalist, writing in the 17^th century had this to say about it:-

“Government and virtues. It is an herb of Mars. The root of Masterwort is hotter than pepper, and very available in cold griefs and diseases both of the stomach and body, dissolving very powerfully upwards and downwards. It is also used in a decoction with wine against all cold rheums, distillations upon the lungs, or shortness of breath, to be taken morning and evening. It also provokes urine, and helps to break the stone, and expel the gravel from the kidneys; provokes women's courses, and expels the dead birth. It is singularly good for strangling of the mother, and other such like feminine diseases. It is effectual also against the dropsy, cramps, and falling sickness; for the decoction in wine being gargled in the mouth, draws down much water and phlegm, from the brain, purging and easing it of what oppresses it. It is of a rare quality against all sorts of cold poison, to be taken as there is cause; it provokes sweat. But lest the taste hereof, or of the seed (which works to the like effect, though not so powerfully) should be too offensive, the best way is to take the water distilled both from the herb and root. The juice hereof dropped, or tents dipped therein, and applied either to green wounds or filthy rotten ulcers, and those that come by envenomed weapons, doth soon cleanse and heal them. The same is also very good to help the gout coming of a cold causey.”

   The infusion or tisane of the chopped root is said to be good for migraines, and it has also been used for asthma. There has not been much research into this plant except by manufacturers of cosmetics who seem to think along with the ancient Romans that it can keep the skin youthful. They were so enamoured of masterwort that some say they were responsible for introducing it to the rest of Europe.