BURMESE ROSEWOOD TREE- THREATENED IN NATIVE HABITAT: HISTORY, USES AND HEALTH BENEFITS OFTHE BURMESE ROSEWOOD TREE

BURMESE ROSEWOOD, NARRA, AMBOYNA WOOD, PTEROCARPUS INDICUS 

This rosewood tree is native to south and south-east Asia and some Pacific islands. It is listed as Vulnerable in the IUCN Red List and has been extinct in Vietnam for 300 years or so. It is valued for its timber which is used in construction, boat and canoe building, furniture, tools and carvings. The heartwood is a beautiful light yellowish-brown through to red-brown while the sap wood is a creamy pale yellow. The heartwood yields a red dye.

  Narra is the Philippino name for this tree, although the same name can refer to other members of the Pterocarpus genus. It is valued not only for its timber but also for its medicinal properties. The tree has been introduced to the Caribbean islands, the Indian subcontinent and Sri Lanka, the Congo, Sierra Leone and Tanzania in the African continent, and Pacific islands to which it is not native. It is a member of the Fabaceae or Leguminoseae family of plants and so is a relative of the amaltas (Indian laburnum), the European laburnum, 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.

  The genus name, Pterocarpus comes from the Greek, pteros meaning winged and karpos meaning fruit, which describes the seeds of this genus. It is known by other botanical names, which are not accepted, Pterocarpus camlinensis Kanch., and Pterocarpus draco as well as Pterocarpus indica.

  It is a useful tree as it fixes nitrogen in the soil and the leaves which fall help to enrich the soil. However it cannot be grown with food crops because it gives shade and is a tall tree which can reach heights of 35 metres plus. It is, however, a useful windbreaker and living fence.

  It has lost some of its natural habitat which has contributed to its decline, but the illegal logging and exploitation of this tree for its timber is the main factor in this decline. In the Philippines in recent years, the tree has become a source of popular herbal remedies for such diverse health problems as headaches, rheumatoid arthritis, leprosy, T.B., menstrual cramps, diabetes and flu. As the bark and wood are employed in herbal remedies this growth in popularity may cause further depletion of these trees.

  Traditionally in the Philippines the bark has been used in a decoction for diarrhoea, and the root extract for syphilitic sores, a decoction of the gum or resin from the trunk of the tree has been used for diarrhoea and dysentery, while an infusion of the leaves has been used for stomach problems, and sprue, which is a tropical disease affecting the throat, mouth and digestive system. The infusion is also used for arrhythmia, and heart palpitations, rheumatism and leucorrhea.

  The fresh young leaves are used for skin problems including prickly heat rash, and sores, and they are also used for the same purposes in Indonesia.

  In Malaysia the juice extracted from the roots is used for syphilitic sores and mouth ulcers. The bark is used in Papua New Guinea for T.B. headaches, sores and as a purgative, while in the Solomon Islands it is used for dysentery, heavy menstruation, and gonorrhoea. It is also used for similar purposes in Vanuatu, but it is also used as a vulnerary there (for wound healing).

  The tree has many medicinal properties it would appear, and it would be sad if it became extinct because of our beliefs that it is medicinally useful. Unscrupulous people are not above illegal logging to make a profit on the next “wonder plant.”

FLIXWEED OR FLUXWEED - POPULAR OLD REMEDY FOR DYSENTERY: HISTORY, HEALTH BENEFITS AND USES OF FLIXWEED

FLIXWEEED, FLUXWEED, DESCURAINIA SOPHIA 

This plant is native to Europe, North Africa and both temperate and tropical Asia. In the past it was used in traditional medicine for dysentery, hence the name fluxweed. It is sometimes called mustard tansy, (Not Tansy) although there is another plant with this name, Descurainia pinnata, a close relative.

  Fluxweed is in the Brassicaceae or Cruciferae family which makes it a relative of the Savoy cabbage, red cabbage, broccoli, kale, kohlrabi, brussel sprouts and collard or spring greens. It contains vitamin C and is edible as is scurvy-grass. Its tender young shoots and leaves may be cooked and used as a vegetable or a pot herb although they are somewhat bitter; they may also be added raw to salads. The plant is, after all a member of the mustard group of plants. The seeds are edible both raw and roasted and may be added to cornmeal to make bread or polenta and can also be used to thicken soups and sauces. Ground and then made into a thin paste with water the seeds form the basis of a cooling, nourishing drink.

  In German the herb is known as Sophienkraut the herb of Saint Sophia who was invoked in past times to prevent late frosts occurring by people who had arable crops such as rye, barley and oats.

  The ancient herbalists called this plant “Sophia chirurgerum” the ‘wisdom of surgeons’, showing how highly esteemed it was. It was renowned for its wound healing properties in the past.

  It was also considered to be effective for sore and ulcerated throats, when equal parts of the juice of fluxweed and honey and vinegar were mixed and taken as a gargle.

  The whole plant has been used as a poultice for toothache, and the flowers and leaves have astringent properties, which is why it is good for dysentery and wound healing. The seed is considered to be a cardio-tonic, demulcent (soothing the mucous membranes) a diuretic, expectorant used for coughs, a laxative and tonic, as well as being able to reduce fevers. The seeds are sometimes used in a poultice, ground, and put on burns scalds and sores.

  Writing in the 17^th century, the English herbalist Nicholas Culpeper has this to say of it:-

“Government and virtues. This herb is saturnine also. Both the herb and seed of Flux-weed is of excellent use to stay the flux or lask of the belly, being drank in water wherein gads of steel heated have been often quenched; and is no less effectual for the same purpose than Plantain or Comfrey, and to restrain any other flux of blood in man or woman, as also to consoladate bones broken or out of joint. The juice thereof drank in wine, or the decoction of the herb drank, doth kill the worms in the stomach or belly, or the worms that grow in putrid and filthy ulcers, and made into a salve doth quickly heal all old sores, how foul or malignant soever they be. The distilled water of the herb works the same effect, although somewhat weaker, yet it is a fair medicine, and more acceptable to be taken. It is called Flux-weed because it cures the flux, and for its uniting broken bones, &c.. It is uniting broken bones, &c. Paracelsus &c extol it to the skies. It is fitting that syrup, ointment, and plaisters of it were kept in your house.”

  In clinical trials it has been found to have analgesic (mild pain-killing) properties plus antioxidant, antipyretic, antimicrobial and anti-inflammatory ones. One or two studies claim that it has some anticancer properties too and inhibits the growth of cancerous cells. It also has insect repellant properties and repels in particular, mosquitoes and sand flies.

  Fluxweed is cultivated in Afghanistan and China and used for digestive problems, so it’s a very versatile herb.

YELLOW BIRD'S NEST RARE NOW IN BRITAIN: HISTORY AND HEALTH BENEFITS OF YELLOW BIRD'S NEST

YELLOW BIRD’S NEST, HYPOPITYS MONOTROPA 

Yellow bird’s nest is a curious plant as it has no chlorophyll, but produces flowers, from one to eleven on a single stalk. It grows throughout the world although it is so small as to be difficult to spot. In the UK and Ireland it is an endangered species and there are moves to protect it. It was formerly called Monotropa Hypopitys, but it is now in a genus of its own, having two subspecies, and is a member of the large Ericaeae family.

  It is endangered in Florida and threatened in Iowa, but is thriving in Pakistan and grows in Japan other countries in Asia and throughout Europe. It looks a little like the Indian Pipe or Ghost plant, Monotropa uniflora, which is native to North America, and it is closely related. As a member of the larger Ericaceae family it is related to cranberries, blueberries, bilberries, huckleberries, azaleas, rhododendron, heather, and the strawberry tree to name but a few of its relatives.

  It grows to between 10 and 35 centimetres tall and is a parasite, living on fungi which grow beneath trees. At one time it was thought that it lived off pine sap as it is frequently found growing under pines, and this gave rise to another English name for the plant, Pinesap.

  Its genus name Hypopitys comes from the Greek hypos meaning ‘under’ and pitys pine. Monotropa means once-turned.

  The plant that grows in spring is yellow, (or at least, creamy yellow-white) hence the name yellow bird’s nest, but the one that grows in autumn is coral pink through to red. Now these have been divided into two sub-species, although formerly they were classed as the same plant.

  The Yellow Bird’s Nests or Pinesaps produce oil similar to that of the wintergreens, which can be easily converted into methyl salicylate, used in flavouring mouthwash, sweets and chewing gum. However it is lethal if taken in large doses. Apart from the wintergreens, the birch tree also produces the same substance. Most of the oil (Oleum Gaultheria) is marketed as oil of wintergreen and is a counter-irritant which gives relief to those who suffer with muscular pain.

  The oil has also been used for intermittent fevers and is used to disguise the taste of other medicines.

  If you happen to find one of these plants, remember that it is a protected species and don’t move it.

 

HORSEWEED OR FLEAWORT - NORTH AMERICAN HERB: HISTORY, USES AND HEALTH BENEFITS OF HORSEWEED

FLEAWORT, HORSEWEED, CONYZA CANADENSIS 

Horseweed is the modern name for this plant which was called fleawort by Nicholas Culpeper, the 17^th century English herbalist. As it had only been introduced into England in around 1640 he can be forgiven for his rather fanciful rationale for its name. The truth is that, like fleabane, it repels insects when burned. It is native to North America, although it has naturalized in Britain now and in most of the rest of Europe. This is what Culpeper has to say of this plant.

“Government and virtues. The herb is cold, and dry, and saturnine. I suppose it obtained the name of Flea-wort, because the seeds are so like Fleas. The seeds fried, and taken, stays the flux or lask of the belly, and the corrosions that come by reason of hot choleric, or sharp and malignant humours, or by too much purging of any violent medicine, as Scammony, or the like. The mucilage of the seed made with Rose-water, and a little sugar-candy put thereto, is very good in all hot agues and burning fevers, and other inflammations, to cool the thirst, and lenify the dryness and roughness of the tongue and throat. It helps also hoarseness of the voice, and diseases of the breast and lungs, caused by heat, or sharp salt humours, and the pleurisy also. The mucilage of the seed made with Plantain water, whereunto the yoke of an egg or two, and a little Populeon are put, is a most safe and sure remedy to ease the sharpness, pricking, and pains of the hæmorrhoids or piles, if it be laid on cloth, and bound thereto. It helps all inflammations in any part of the body, and the pains that come thereby, as the headache and megrims, and all hot imposthumes, swellings, or breaking out of the skin, as blains, wheals, pushes, purples, and the like, as also the joints of those that are out of joint, the pains of the gout and sciatica, the burstings of young children, and the swellings of the navel, applied with oil of roses and vinegar. It is also good to heal the nipples and sore breasts of women, being often applied there-unto. The juice of the herb with a little honey put into the ears helps the running of them, and the worms breeding in them. The same also mixed with hog's grease, and applied to corrupt and filthy ulcers, cleanses them and heals them.”

  It was boiled and used in sweat lodges by the Native Americans, and a decoction of the plant was traditionally used against cancer. The Native Americans also used the powdered herb as snuff to clear the head when they had colds. In Chinese medicine it has been used for wounds, swellings and the pain caused by arthritis. In Europe it has mainly been used for its astringent properties and so used to treat diarrhoea and dysentery as well as being used as a diuretic. Now it is also used for bleeding piles, externally.

  The whole herb can be used and should be gathered and dried for later use. It was formerly called Erigeron canadensis with erigeron describing it appearance of being past its prime as soon as it flowers (eri being Greek for early and geros or geron meaning old man). It contains a volatile oil which is used for flavouring soft drinks, sweets and in perfumery.

  Horseweed is a member of the Asteraceae or Compositae family, which makes it a relative of such plants as fleabane, pellitory or Roman chamomile, marigolds, purple goat’s beard (salsify), yellow goat’s beard, elecampane, the ox-eye daisy, holy thistles, costmary, tansy, feverfew, groundsel and yarrow, among others. Its leaves are edible and can be eaten in salads or cooked as a vegetable like spinach. They contain the minerals calcium, phosphorous, and potassium in fairly high proportions.

  It has been the subject of several clinical studies which have found it to have antifungal and antimicrobial activities. A methanolic extract of the plant has “exhibited important antibacterial activity” and “good antioxidant activity” while the “ethyl acetate and petroleum ether extracts demonstrated effective cytotoxic activity against Hep-2 cells.” (Medical Chemistry Research Vol.18 (6) 2009, pp 447-458 “Antibacterial, antioxidant and cytotoxic activities of extracts of Conyza canadensis (L) Cronquist growing in Tunisia” Edzir Hayat et al.)

  Another study by Beata Olas et al. (2006) “Antioxidant and antiaggregating effects of an extract from Conyza canadensis on blood platelets in vitro” also found that  “the natural polysaccharide extract from Conyza canadensis has antiaggregatory and antioxidative activities and therefore may be beneficial in the prevention of peroxynitrite-related diseases, such as cardio-vascular and inflammatory diseases.”

  Yet another study conducted in Hungary by Boglárka Csupor-Lôffler et al.  “Antiproliferative Constituents of the Roots of Conyza canadensis” (2011) found the extracts to have “considerable cell-growth inhibitory activity against human cervix adenocarcinoma (HeLa), skin carcinoma (A431) and breast adenocarcinoma (MCF-7) cells.”

  Clearly this plant has a lot of potential benefits for us and research is continuing into its properties.