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Botanical Name : Acorus calamus
Family: Sweet Flag (Acoraceae)
Species: A. calamus
Common names: Beewort, Bitter pepper root, Calamus root, Flag root, Gladdon, Myrtle flag, Myrtle grass, Myrtle root, Myrtle sedge, Pine root, Rat root, Sea sedge, Sweet cane, Sweet cinnamon, Sweet grass, Sweet myrtle, Sweet root, Sweet rush, and Sweet sedge.
Common names in Asia include: “Shoubu,” in Japanese, “vacha”; “Bacch” (Unani); “Bajai,” “Gora-bach,” “Vasa bach” (Hindi); “Vekhand” (Marathi); “Vasambu” (Tamil); “Vadaja,” “Vasa” (Telugu); “Baje” (Kannada); “Vayambu” (Malayalam); Haimavati, “Bhutanashini,” “jatila” (Sanskrit). “Bojho” Nepali.
Part Used: –Root.
Description:— Calamus OR the Sweet Sedge is a perennial herb, in habit somewhat resemblingthe Iris, with a long, indefinite, branched, cylindrical rhizome immersed in the mud, usually smaller than that of the Iris, about the thickness of a finger and emitting numerous roots. The erect leaves are yellowish-green, 2 to 3 feet in length, few, all radical, sheathing at their bases (which are pink), swordshaped, narrow and flat, tapering into a long, acute point, the edges entire, but wavy or crimped. The leaves are much like those of Iris, but may readily be distinguished from these and from all others by the peculiar crimped edges and their aromatic odour when bruised.
The scape or flower-stem arises from the axils of the outer leaves, which it much resembles, but is longer and solid and triangular. From one side, near the middle of its length, projecting upwards at an angle, from the stem, it sends out a solid, cylindrical, blunt spike or spadix, tapering at each end, from 2 to 4 inches in length, often somewhat curved and densely crowded with very small greenish-yellow flowers. Each tiny flower contains six stamens enclosed in a perianth with six divisions and surrounding a threecelled, oblong ovary with a sessile stigma. The flowers are sweet-scented and so formed that cross-pollination is ensured, but the plant is not usually fertile in the British Isles, as it is in Asia, the proper insects being absent here. The fruit, which does not ripen inEurope, is a berry, being full of mucus, which falls when ripe into the water or to the ground, and is thus dispersed, but it fruits sparingly everywhere and propagates itself mainly by the rapid growth of its spreading rhizome.
It is easily distinguished from all other British plants by its peculiar spadix, which appears in June and July, and by the fragrance of its roots, stems and leaves.
In most localities the flowers are not very abundantly produced: it never flowers unless actually growing in water.
Calamus is a vigorous, reed-like, aquatic plant, flourishing in ditches, by the margins of lakes and streams and in marshy places generally, associated with reeds, bullrushes and bur-reed. Its erect, sword-shaped leaves bear considerable resemblance to those of the Yellow Flag, hence its equally common popular name of ‘Sweet Flag,’ though it is not related botanically to the Iris, being a member of the Arum order, Araceae. All parts
of the plant have a peculiar, agreeable fragrance.
Formerly, on account of its pleasant odour, it was freely strewn on the floors of churches at festivals and often in private houses, instead of rushes. The specific name, calamus, is derived from the Greek calamos (a reed).
The floors of Norwich Cathedral until quite recently were always strewn with calamus at great festivals. As the Sweet Sedge did not grow near London, but had to be fetched at considerable expense from Norfolk and Suffolk, one of the charges of extravagance brought against Cardinal Wolsey was his habit of strewing his floors with fresh rushes.
Most species of this order give out a considerable amount of heat within the spathe at the time of flowering, so that the temperature rises noticeably above that of the external air. Many of the varieties also have lurid colouring and a fetid odour.
The generic name, Acorus, is from Acoron, the Greek name of the plant used by Dioscorides and said to be derived from Coreon (the pupil of the eye), diseases of which the Ancients used this plant to cure.
The rhizomes are an important commercial commodity and of considerable medicinal value. Though now common throughout Europe, there is little doubt that the Sweet Flag is a native of eastern countries, being indigenous to the marshes of the mountains of India.
Calamus was largely grown from time immemorial for its rhizomes in the East and the Indian rhizomes were imported extensively long after it was common in Europe. The Indian rhizome is said to have a stronger and more agreeable flavour than that obtained in Europe or the United States.
The Calamus aromaticus of the Ancients is thought by some to be a plant belonging to the Gentian family, though the description of the plant ‘Acoron,’ a native of Colchis, Galatia, Pontus and Crete, given by Dioscorides and Pliny, seems to refer to the Sweet Flag.
It is now found wild on the margins of ponds and rivers in most of the English counties, and is in some parts abundant, especially in the Fen districts. In Scotland it is scarce. It is found in all European countries except Spain, and becomes more abundant eastward and in southern Russia, northern Asia Minor and southern Siberia, China and Japan. It is also found in the northern United States of America, where it appears to be indigenous.
It is cultivated to a small extent in Hungary, Burma and Ceylon, and is common in gardens in India. In northern China another species is cultivated as an ornamental greenhouse plant, but the wild plant is that generally collected for use, especially in Russia, on the shores of the Black Sea. In 1724, Berlu (Treasury of Drugs) states that it was ‘brought in quantities from Germany,’ hence it may be inferred it was not collected in England until a later period, when the London market was supplied from the rivers and marshes of Norfolk, where it was cultivated in the Fen districts, and from the banks of the Thames, as much as L.40 having been obtained for the year’s crop of a single acre of the riverside land on which it naturally grows. But for many years now the native source has been neglected and the rhizomes for medicinal and commercial use are imported. In dry summers, large quantities are collected in the ditches in Germany, but the greater proportion of the imported drug is derived from southern Russia, via Germany.
Cultivation-:–The plants can be propagated very readily by the division of the clumps or of the rhizomes in early spring, or at the commencement of autumn, portions of the rhizome being planted in damp, muddy spots, in marshes or on the margins of water, set 1 foot apart and well covered. It will succeed very well in a garden if the ground is moist, but a rich,moist soil is essential, or it has to be frequently watered.
The rhizomes are gathered when large enough, generally after two or three years, and before they lose their firmness and become hollow. Late autumn or early spring is the time chosen for collection.
Constituents:—The properties of Calamus are almost entirely due to its volatile oil, obtained by steam distillation. The oil is contained in all parts of the plant, though in greatest quantity in the rhizome, the leaves yielding to distillation 0.2 per cent, the fresh root 1.5 to 3.5 per cent, the dried German root 0.8 per cent, and the Japan root as much as 5 per cent.
The oil is strong and fragrant, its taste warm, bitterish, pungent and aromatic. Its active principles are taken up by boiling water. It is a thick, pale yellow liquid. Little is known of its chemistry, though it possibly contains pinene and the chief aromatic constituent is asaryl aldehyde.
The root stock or rhizome also contains alkaloidal matter, mainly Choline (formerly thought to be a specific alkaloid, Calamine); soft resin, gum, starch and the bitter glucoside, Acorin, which is amorphous, semi-fluid, resinous, of neutral reaction, aromatic odour and bitter aromatic taste.
It is called a Sacred Medicinal Plant of the Native Cree.
The Cree Indians of Northern Alberta use Calamus for a number of medicinal reasons including: as an analgesic for the relief of toothache or headache, for oral hygiene to cleanse and disinfect the teeth, the fight the effects of exhaustion or fatigue, and to help cure/prevent a hangover.
Other Native tribes used it to treat a cough, made a decoction as a carminative and as an infusion for cholic.
The Dakotas use calamus to treat diabetes, and there are several reported cases where of the root had cured people who had been given up by Western medicine. When calamus root was chewed regularly by the Indians, they would be miraculously cured of this disease within a matter of months.
The Sioux used the whole plant, making aromatic garlands from the leaves and using the root as a tea for bowel pains, or rubbed the chewed root on the skin for a general illness cure.
It is the root-stock or rhizome that is used for medicinal purposes, a digestive medicine being made from it which is official in the United States Pharmacopceia and in several others.
The root stock or rhizome is an aromatic stimulant, bitter tonic and expectorant.It relieves flatulence,counteract spasmodic disorders and induces vomiting.It regulates manstrual periods. It is also a laxative, diuretic and aphrodisiac.
It is used in the treatment of instinal worm,dirrhoea,asthma, mouth ulcers, common cold and in vavious other infant’s ailments.
Calamus was formerly much esteemed as an aromatic stimulant and mild tonic. A fluid extract is an official preparation in the
United States and some othebal medicine as anr Pharmacopceias, but it is not now official in the British Pharmacopceia, though it is much used in her aromatic bitter.
On account of the volatile oil which is present, it also acts as a carminative, removing the discomfort caused by flatulence and checking the growth of the bacteria which give rise to it.
It is used to increase the appetite and benefit digestion, given as fluid extract, infusion or tincture. Tincture of Calamus, obtained by macerating the finely-cut rhizome in alcohol for seven days and filtering, is used as a stomachic and flavouring agent. It has a brownish-yellow colour and a pungent, spicy taste.
The essential oil is used as an addition to inhalations.
The dried root may be chewed ad libitum to relieve dyspepsia or an infusion of 1 OZ. to 1 pint of boiling water may be taken freely in doses of a teacupful. The dried root is also chewed to clear the voice.
Fluid extract, U.S.P., 15 to 60 drops.
Calamus has been found useful in ague and low fever, and was once greatly used by country people in Norfolk, either in infusion, or powdered, as a remedy against the fever prevalent in the Fens. Its use has been attended with great success where Peruvian bark has failed. It is also beneficial as a mild stimulant in typhoid cases.
The tonic medicine called Stockton Bitters, formerly in much esteem in some parts of England, is made from the root of this plant and that of Gentiana campestris.
Waller’s British Herbal says:
‘It is of great service in all nervous complaints, vertigoes, headaches and hypochondriacal affections. Also commended in dysentry and chronic catarrhs. The powdered root may be given, 12 grs. to 1/2 drachm. In an infusion of 2 drachms to a pint of water or of white wine, it is an agreeable stomachic, even to persons in health, to take a glass about an hour before dinner. When the root is candied with sugar, it is convenient to dyspeptic patients, who may carry it in a small box, in the pocket, and take it as they find occasion.’
On the Continent the candied rhizome is widely employed. The Turks use the candied rhizome as a preventive against contagion.
The rhizome is largely used in native Oriental medicines for dyspepsia and bronchitis and chewed as a cough lozenge, and from the earliest times has been one of the most popular remedies of the native practitioners of India. The candied root is sold as a favourite medicine in every Indian bazaar.
The powdered root is also esteemed in Ceylon and India as a vermifuge and an insecticide, especially in relation to fleas. Sprinkled round a tree attacked by white ants in Malay (Perak) it was found to destroy those that were near the surface and prevented others from attacking the tree.
In powder, Calamus root on account of its spicy flavour serves as a substitute for cinnamon, nutmeg and ginger. It is said also to be used by snuff manufacturers and to scent hair-powders and in tooth-powders, in the same way as orris.
The highly aromatic volatile oil is largely used in perfumery.
The oil is used by rectifiers to improve the flavour of gin and to give a peculiar taste and fragrance to certain varieties of beer.
In the United States, Calamus was also formerly used by country people as an ingredient in making wine bitters.
In Lithuania, the root is preserved with sugar-like angelica.
The young and tender inflorescence is often eaten by children for its sweetness. In Holland, children use the rhizomes as chewing-gum and also make pop-gun projectiles of them.
The aroma that makes the leaves attractive to us, renders them distasteful to cattle, who do not touch the plant.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.
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