herb research - ginseng

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Ginseng

Botanical: Panax quinquefolium (LINN.)

Family: N.O. Araliaceae

* Description

* Cultivation

* Harvesting, Preparation for Market

* Constituents

* Medicinal Action and Uses

* Subsitiutes

---Synonyms---Aralia quinquefolia. Five Fingers. Tartar Root. Red Berry.

Man's Health.

---Part Used---Root.

---Habitat---Ginseng is distinguished as Asiatic or Chinese Ginseng. It is

a native of Manchuria, Chinese Tartary and other parts of eastern Asia, and

is largely cultivated there as well as in Korea and Japan.

 

Panax, the generic name, is derived from the Greek Panakos (a panacea), in

reference to the miraculous virtue ascribed to it by the Chinese, who

consider it a sovereign remedy in almost all diseases.

It was formerly supposed to be confined to Chinese Tartary, but now is

known to be also a native of North America, from whence Sarrasin

transmitted specimens to Paris in 1704.

The word ginseng is said to mean 'the wonder of the world.'

---Description---The plant grows in rich woods throughout eastern and

central North America, especially along the mountains from Quebec and

Ontario, south to Georgia. It was used by the North American Indians. It is

a smooth perennial herb, with a large, fleshy, very slow-growing root, 2 to

3 inches in length (occasionally twice this size) and from 1/2 to 1 inch in

thickness. Its main portion is spindle-shaped and heavily annulated (ringed

growth), with a roundish summit, often with a slight terminal, projecting

point. At the lower end of this straight portion, there is a narrower

continuation, turned obliquely outward in the opposite direction and a very

small branch is occasionally borne in the fork between the two. Some small

rootlets exist upon the lower portion. The colour ranges from a pale yellow

to a brownish colour. It has a mucilaginous sweetness, approaching that of

liquorice, accompanied with some degree of bitterness and a slight aromatic

warmth, with little or no smell. The stem is simple and erect, about a foot

high, bearing three leaves, each divided into five finely-toothed leaflets,

and a single, terminal umbel, with a few small, yellowish flowers. The

fruit is a cluster of bright red berrles.

The plant was first introduced into England in 1740 by the botanist

Collinson.

Chinese Ginseng is a larger plant, but presents practically the same

appearance and habits of growth. Its culture in the United States has never

been attempted, though it would appear to be a promising field for

experiment.

Father Jartoux, who had special privileges accorded him in the study of

this plant, says that it is held in such esteem by the natives of China,

that the physicians deem it a necessity in all their best prescriptions,

and regard it as a remediable agency in fatigue and the infirmities of old

age. Only the Emperor has the right to collect the roots. The prepared root

is chewed by the sick to recover health, and by the healthy to increase

their vitality; it is said to remove both mental and bodily fatigue, to

cure pulmonary complaints, dissolves tumours and prolongs life to a ripe

old age.

Father Jartoux was satisfied that its praise was justified, and he adds his

own testimony to its efficacy in relieving fatigue and increasing vitality.

The roots are called, by the natives of China, Jin-chen, meaning 'like a

man,' in reference to their resemblance to the human form. The American

Indian name for the plant, garantoquen, has the same meaning.

Owing to the enormous demand for the root in China recourse was had to the

American species, Panax quinquefolium (Linn.), and in 1718 the Jesuits of

Canada began shipping the roots to China, and the first shipment from North

America to Canton yielded enormous profits. In 1748 the roots sold at a

dollar a pound in America and nearly five in China. Afterwards, the price

fluctuated, but the root is still eagerly purchased by Chinese traders for

export to China, and at the present time commands a yet higher price in the

American markets, though it is not an official medicine and has only a

place in the eclectic Materia Medica. The American Consul at Amoy stated a

few years ago that it is possible to market twenty million dollars worth of

American Ginseng annually to China, if it could be produced; but since its

collection for exportation, it has been so eagerly sought that it has

become exterminated in many districts where it was formerly abundant.

This has led to its cultivation and to various devices for preserving the

natural supply. In Canada a fine is imposed for collecting between January

and the 1st of September. Among the Indians, it is customary to collect the

root only after the maturity of the fruit and to bend down the stem before

digging the root, thus providing for its propagation. Indian collectors

assert that a large number of such seeds will germinate, and that they have

been able to increase their area of collection by this method.

In 1876, 550,624 lb. were exported at an average price of 1 dollar 17

cents; the amount available for export since then has steadily decreased

and the price has gone up in proportion, till in 1912 the export was only

155,308 lb., at an average price of 7 dollars 20 cents per pound.

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---Cultivation---On account of the growing scarcity of the American Ginseng

plant, experiments have been made by the State of Pennsylvania to determine

whether it can be grown profitably, resulting in the conclusion that in

five years, starting with seeds and one year plants (or sooner if a start

were made with older plants), an acre of ground would yield a profit of

1,500 dollars, without allowance for rental, but many precautions are

necessary for success. The cultivated plants produced larger roots than

those of the wild plant.

In 1912 it was estimated that the acreage of cultivated Ginseng in the

United States was about 150 acres, and it is calculated that to supply

China with twenty million dollars' worth of dry root would require the

American growers to plant 1,000 acres annually for five years, before this

estimated annual supply could be sold. The cultivation of Ginseng would

therefore appear to offer a rich field to American agriculture. It

presents, however, considerable difficulty, owing to the great care and

special methods required and to the fact that it is a very slow-growing

crop, so that rapid returns can hardly be anticipated, and it is doubtful

if its cultivation can be carried on profitably except by specialists in

the crop. None the less, the percentage returns for the industrious,

patient and painstaking farmer are large, and the demand for a fine article

for export is not at all likely to be exceeded by the supply.

For successful cultivation of Ginseng in America, it is stated that a

loose, rich soil, with a heavy mulch of leaves and about 80 per cent shade

- generally provided artificially is necessary.

It is difficult to cultivate it here with success. A rich compost is

necessary. Most of the species of this genus need greenhouse treatment in

this country. Propagation by cuttings of the roots is the most successful

method, the cuttings being placed in sand, under a handglass. Seeds,

generally obtained from abroad, are sown in pots in the early spring and

require gentle heat. When the plants are a few inches high, they must be

transplanted into beds or sheltered borders. They require a good, warm

soil, but much shade. To grow on a commercial basis is not considered

feasible in this country.

---Harvesting, Preparation for Market---The root should be collected only

in the autumn, in which case it retains its plump and handsome appearance

after drying. It is much more highly prized when of a fine light colour,

which it is more apt to assume when grown in deep, black, fresh mould.

The best root is said to be that collected by the Sioux Indian women, who

impart this white appearance by rotating it with water in a partly-filled

barrel, through which rods are run in a longitudinal direction. In no other

way, it is said, can the surface be so thoroughly and safely cleansed.

The structure of the root is fleshy and somewhat elastic and flexible, and

it is of a firm, solid consistence if collected at the proper time and

properly cured. The bark is very thick, yellowish-white, radially striate

in old roots and contains brownishred resin cells. The wood is strongly and

coarsely radiate, with yellowish wood wedges and whitish rays.

The best roots for the Chinese market are sometimes submitted before being

dried to a process of clarification, which renders them yellow,

semi-transparent and of a horny appearance and enhances their value. This

condition is gained by first plunging them in hot water, brushing until

thoroughly scoured and steaming over boiling seed. Its commercial value is

determined in a high degree by its appearance. The roots are valued in

accordance with their large size and light colour, their plumpness and fine

consistence, their unbroken and natural form, and above all by the

perfectly developed condition of the branches.

---Constituents---A large amount of starch and gum, some resin, a very

small amount of volatile oil and the peculiar sweetish body, Panaquilon.

This occurs as a yellow powder, precipitating with water a white, amorphous

substance, which has been called Panacon.

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---Medicinal Action and Uses---Panax is not official in the British

Pharmacopoeia, and it was dismissed from the United States Pharmacopceia at

a late revision. It is cultivated almost entirely for export to China.

In China, both varieties are used particularly for dyspepsia, vomiting and

nervous disorders. A decoction of 1/2 oz. of the root, boiled in tea or

soup and taken every morning, is commonly held a remedy for consumption and

other diseases.

In Western medicine, it is considered a mild stomachic tonic and stimulant,

useful in loss of appetite and in digestive affections that arise from

mental and nervous exhaustion.

A tincture has been prepared from the genuine Chinese or American root,

dried and coarsely powdered, covered with five times its weight of alcohol

and allowed to stand, well-stoppered, in a dark, cool place, being shaken

twice a day. The tincture, poured off and filtered, has a clear,

light-lemon colour, an odour like the root and a taste at first bitter,

then dulcamarous and an acid reaction.

---Substitutes---A substitute for Ginseng, somewhat employed in China, is

the root of Codonopsis Tangshen, a bell-flowered plant, used by the poor as

a substitute for the costly Ginseng.

Ginseng is sometimes accidentally collected with Senega Root (Polygala

Senega, Linn.) and with Virginian Snake Root (Aristolochia Serpentaria,

Linn.), but is easily detected, being less wrinkled and twisted and

yellower in colour. It is occasionally found with the collected root of

Cypripedium parviflorum (Salis) and Stylophorum diphyllum (Nuttall).

Blue Cohosh (Caulophyllum thalictroides, Linn.) is often called locally in

the United States 'Blue' or 'Yellow Ginseng,' and Fever Root (Triosteum

perfoliatum, Linn.) also is sometimes given the name of Ginseng.