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Herbs & Plants

Gentiana

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Botanical Name : Gentiana lutea
Family: Gentianaceae
Genus: Gentiana
Species: G. lutea
Kingdom: Plantae
Order: Gentianales

Common Name :Great yellow gentian

Other names:   Yellow gentian, bitter root, bitterwort, centiyane, genciana   and   the Devil’  taint

Habitat: The Yellow Gentian is a native of the Alpine and sub-alpine pastures of central and southern Europe, frequent in the mountains of Spain and Portugal, the Pyrenees, Sardinia and Corsica, the Apennines, the Mountains of Auvergne, the Jura, the lower slopes of the Vosges, the Black Forest and throughout the chain of the Alps as far as Bosnia and the Balkan States. It does not reach the northern countries of the Continent, nor the British Isles. At an elevation of from 3,000 to 4,500 feet, it is a characteristic species of many parts of France and Switzerland, where, even when not in flower, the numerous barren shoots form conspicuous objects: the leaves are at first sight very similar to Veratrum album, the White Hellebore, which is its frequent companion. Out of Europe, the plant occurs in the mountains of Lydia. In some parts it occupies large tracts of country, being untouched by any kind of cattle.

Description:
Gentiana lutea is a herbaceous perennial plant, growing to 1–2 m tall, with broad lanceolate to elliptic leaves 10–30 cm long and 4–12 cm broad. The flowers are yellow, with the corolla separated nearly to the base into 5-7 narrow petals. It grows in grassy alpine and sub-alpine pastures, usually on calcareous soils.

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The root is long and thick, generally about a foot long and an inch in diameter, but sometimes even a yard or more long and 2 inches in diameter, of a yellowish-brown colour and a very bitter taste. The stem grows 3 or 4 feet high or more, with a pair of leaves opposite to one another, at each joint. The lowest leaves have short foot-stalks, but the upper ones are stalkless, their bases almost embracing the stem. They are yellowish-green in colour, oblong in shape and pointed, rather stiff, with five prominent veins on the underside, and diminish gradually in size as they grow up the stem. The large flowers are in whorls in the axils of the uppermost few pairs of leaves, forming big orange-yellow clusters. The corollas are wheel-shaped, usually five-cleft, 2 inches across, sometimes marked with rows of small brown spots, giving a red tinge to the otherwise deep yellow. Seeds in abundance are produced by strong plants, and stock is easily raised from them.

Cultivation:
For the successful cultivation of G. lutea, a strong, loamy soil is most suitable, the deeper the better, as the stout roots descend a long way down into the soil. Plenty of moisture is also desirable and a position where there is shelter from cold winds and exposure to sunshine. Old plants have large crowns, which may be divided for the purpose of propagation, but growing it on a large scale, seeds would be the best method. They could be sown in a frame, or in a nursery bed in a sheltered part of the garden and the young seedlings transplanted. They take about three years to grow to flowering size. It is, however, likely that the roots are richest in medicinal properties before the plants have flowered. A big clump of G. lutea is worthy of a conspicuous position in any large flower garden, quite apart from its medicinal value.

Medicinal Uses:    Gentiana is a plant extract made from gentians, which are a group of perennial plants belonging to the Gentianaceae family. There are about 180 species of gentians worldwide. They have a long history of use in healing both in Asian and Western herbalism . In the West, the common gentian used in healing is Gentiana lutea, or yellow gentian. In China, two different gentians are used in healing, Gentiana macrophylla, known in Chinese as qin jiao ; and Gentiana scabra, known in Chinese as long dan cao.

Part Used: The rhizome and roots collec

ted in autumn and dried. When fresh, they are yellowish-white externally, but gradually become darker by slow drying. Slow drying is employed to prevent deterioration in colour and to improve the aroma. Occasionally the roots are longitudinally sliced and quickly dried, the drug being then pale in colour and unusually bitter in taste, but this variety is not official.

Gentian is used in herbal medicine to treat digestive problems, fever, hypertension, muscle spasms, parasitic worms, wounds, cancer, sinusitis, and malaria, although studies have shown no efficacy beyond that of a placebo.

Gentiana punctata leaves and roots have been used in the traditional Austrian medicine internally and externally as liqueur or tea for treatment of disorders of the gastrointestinal tract, skin, locomotor system, liver and bile, for paediatric problems, fever, flu, rheumatism and gout

Constituents:  The dried Gentian root of commerce contains Gentiin and Gentiamarin, bitter glucosides, together with Gentianic acid (gentisin), the latter being physiologically inactive. Gentiopicrin, another bitter glucoside, a pale yellow crystalline substance, occurs in the fresh root, and may be isolated from it by treatment with boiling alcohol. The saccharine constituents of Gentian are dextrose, laevulose, sucrose and gentianose, a crystallizable, fermentable sugar. It is free from starch and yields from 3 to 4 per cent ash.

Gentian is one of the most useful of our bitter vegetable tonics. It is specially useful in states of exhaustion from chronic disease and in all cases of general debility, weakness of the digestive organs and want of appetite. It is one of the best strengtheners of the human system, and is an excellent tonic to combine with a purgative to prevent its debilitating effects. Many dyspeptic complaints are more effectually relieved by Gentian bitters than by Peruvian Bark. It is of extreme value in jaundice and is prescribed extensively.

Besides being unrivalled as a stomachic tonic, Gentian possesses febrifuge, emmenagogue, anthelmintic and antiseptic properties, and is also useful in hysteria, female weakness, etc. Gentian with equal parts of Tormentil or galls has been used with success for curing intermittent fever.

As a simple bitter, Gentian is considered more palatable combined with an aromatic, and for this purpose orange peel is frequently used. A tincture made with 2 OZ. of the root, 1 OZ. of dried orange peel, and 1/2 oz. bruised cardamom seeds in a quart of brandy is an excellent stomachic tonic, and is efficacious in restoring appetite and promoting digestion. A favourite form in which Gentian has been administered in country remedies is as an ingredient in the so-called Stockton bitters, in which Gentian and the root of Sweet Flag play the principal part.

Disclaimer:
The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.

Resources:
http://www.botanical.com/botanical/mgmh/g/gentia08.html
http://en.wikipedia.org/wiki/Gentiana_lutea

http://www.encyclopedia.com/doc/1G2-3435100338.html

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Herbs & Plants

Gentiana scabra

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Botanical Name : Gentiana scabra
Family: Gentianaceae
Genus: Gentiana
Species: G. scabra
Kingdom: Plantae
Order: Gentianales

Common Name; Long Dan Cao, Japanese gentian

Habitat :Gentiana scabra  is native to E. Asia – China, Japan.( Now it is  found in much of the United states and Japan ,Korea, E Russia (Fujian, Jiangsu, Zhejiang ).It grows in  river banks, grassland and roadside slopes, moist meadows, scrub, forest margins, forests; 400-1700 m.

Description:
Gentiana scabra is a perennial plant . growing  30-60 cm tall. Stems apically papillate. Stem leaves sessile; lowermost leaves scalelike, 4-6 mm; middle to upper leaves linear-lanceolate, ovate-lanceolate, or ovate, 2-7 × (0.4-)2-3 cm, base rounded to subcordate, margin scabrous and revolute, apex acuminate to acute, veins 3-5. Upper leaves slightly smaller, shorter than flowers and surrounding their bases. Inflorescences 1 to many flowered, terminal or in axillary clusters, axillary clusters rarely on pedunclelike branches; bracts linear-lanceolate to lanceolate, 2-2.5 cm. Flowers sessile. Calyx tube 1-1.2 cm, entire; lobes spreading to erect, linear, 8-10 mm, margin scabrous, apex acute. Corolla blue-purple, sometimes with yellow-green spots in throat, tubular-campanulate to funnelform, 4-5 cm; lobes ovate to ovate-orbicular, 7-9 mm, apex rounded and apiculate; plicae obliquely and narrowly triangular, 3-4 mm, apex acute or slightly 2cleft. Stamens inserted at middle of corolla tube; filaments 0.9-1.2 cm; anthers free, narrowly ellipsoid, 3.5-4.5 mm. Style 3-4 mm. Capsules 2-2.5 cm; gynophore to 1.5 cm. Seeds 1.8-2.5 mm. It is hardy to zone (UK) 5. It is in flower from Aug to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bumblebees, butterflies.

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Propagation;
Seed – best sown as soon as it is ripe in a light position in a cold frame. It can also be sown in late winter or early spring but the seed germinates best if given a period of cold stratification and quickly loses viability when stored, with older seed germinating slowly and erratically. It is advantageous to keep the seed at about 10?C for a few days after sowing, to enable the seed to imbibe moisture. Following this with a period of at least 5 – 6 weeks with temperatures falling to between 0 and -5?C will usually produce reasonable germination. It is best to use clay pots, since plastic ones do not drain so freely and the moister conditions encourage the growth of moss, which will prevent germination of the seed. The seed should be surface-sown, or only covered with a very light dressing of compost. The seed requires dark for germination, so the pots should be covered with something like newspaper or be kept in the dark. Pot up the seedlings into individual pots as soon as they are large enough to handle and grow on in light shade in the greenhouse for at least their first winter. The seedlings grow on very slowly, taking 2 – 7 years to reach flowering size. When the plants are of sufficient size, place them out into their permanent positions in late spring or early summer. Division in March. Most members of this genus have either a single tap-root, or a compact root system united in a single root head, and are thus unsuitable for division. Cuttings of basal shoots in late spring.

Edible Uses:
Young plant and old leaves – cooked & eaten.  A famine food, used when all else fails.

Medicinal Uses:
Long Dan Cao is used as a bitter tonic in Chinese herbalism where it promotes digestive secretions and treats a range of illnesses associated with the liver. The root is antibacterial and stomachic. It is used in the treatment of anorexia, dyspepsia, jaundice, leucorrhoea, eczema, conjunctivitis, sore throat, acute infection of the urinary system, hypertension with dizziness and tinnitus. The root is harvested in the autumn and dried for later use. This species is one of several that are the source of the medicinal gentian root, the following notes are based on the general uses of G. lutea which is the most commonly used species in the West. Gentian root has a long history of use as a herbal bitter in the treatment of digestive disorders and is an ingredient of many proprietary medicines. It contains some of the most bitter compounds known and is used as a scientific basis for measuring bitterness. It is especially useful in states of exhaustion from chronic disease and in all cases of debility, weakness of the digestive system and lack of appetite. It is one of the best strengtheners of the human system, stimulating the liver, gall bladder and digestive system, and is an excellent tonic to combine with a purgative in order to prevent its debilitating effects. The root is anthelmintic, anti-inflammatory, antiseptic, bitter tonic, cholagogue, emmenagogue, febrifuge, refrigerant, stomachic. It is taken internally in the treatment of liver complaints, indigestion, gastric infections and anorexia. It should not be prescribed for patients with gastric or duodenal ulcers. The root is harvested in the autumn and dried for later use. It is quite likely that the roots of plants that have not flowered are the richest in medicinal properties.

The root is a bitter, cooling, anti-inflammatory herb that stimulates the appetite and digestion, increases blood sugar levels and potentiates the sedative and analgesic properties of other herbs.  Internally used for liver disorders, eye complaints related to liver disharmony (such as conjunctivitis), acute urinary infections, hypertension with dizziness or tinnitus and tantrums in children.  Included in many Chinese patent remedies for “liver heat.”  It is also used in the treatment of jaundice, leucorrhoea, eczema, conjunctivitis, and sore throat.

Disclaimer:
The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.

Resources:
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200018072
http://en.wikipedia.org/wiki/Gentiana_scabra
http://www.herbnet.com/Herb%20Uses_LMN.htm
http://commons.wikimedia.org/wiki/Category:Gentiana_scabra

http://www.pfaf.org/user/Plant.aspx?LatinName=Gentiana+scabra

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