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Ayurvedic Herbs / Thai Herbs - Medicinal Plants - C
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Ayurvedic
Medicine |
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Basics
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There are numerous medicinal plants in current use in Thailand.
Ayurvedic medicine and Thai traditional
medicine, each finding many uses and deserving to be exhibited to the
enthusiasts who wish to know about the characteristics of its stem, flower,
fruit together with the research work undertaken, it is impossible to
exhibit all, or even the majority, of them. For this reason some common
medicinal plants which received research attention both locally and
internationally have been selected. In addition, some which
have so far attracted little attention from
researchers have also been included owing to their recognition in
Ayurvedic Medicine and traditional medicine in Thailand
as well as some Asian countries.
The information
has been
searched from the literature, selected and edited in order to be presented in
this site, which will familiarize the reader with general characters of such plants. No botanical details are given
owing to the nature of this
work and also to limited space. Sketches of the plants, however, are
given to enable the reader to recognize them. It should be noted that
all Thai, Sanskrit, Latin and English common names of the plants
appearing in this site are transliterated into English with the sound in
mind, and not according to the official rules. In addition, owing to
the limited space the traditional
usage of each plant is meant to be representative, and by no means comprehensive.
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A large, scandent, prickly shrub or climber.
The plant is used for curing senile pruritis with
excellent result. The drug is also reported to exhibit
anti-fatigue effect in rats. The roots have marked astringent
and antipyretic properties.
They yield bergenin (vakerin). |
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An aromatic, erect, annual herb, cultivated in
India.
The ligulate florets constitute the drug which is
reported to possess stimulant, bitter, tonic, sudorific,
febrifuge, carminative, anti-emetic and anthelmintic properties.
The flowers contain calenduline, and oleanolic acid glycoside
and sterol glycosides. They also contain a- and ß-amyrin,
taraxasterol, y - taraxasterol, lupeol, brein, faradiol,
arnidiol, erythrodiol, calenduladiol, coflodiol (ursadiol) and
manilladiol. |
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A small,
erect and compact shrub, covered with cottony tomentum.
The rootbark contains a- and ß-amyrin, ß-amyrin,
taraxasterol and its y-isomer, taraxasteryl isovalerate,
taraxasteryl acetate, gigantin, giganteol, isogiganteol, ß-sitosterol
and a wax.
In small doses, the rootbark is diaphoretic and
expectorant. It acts as a mild stimulant. |
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A prostrate shrub or climber armed with
divaricate, light yellow thorns.
The root bark contains stachydrine, rutic acid
and a volatile substance. It is bitter, aperient, diuretic and
expectorant. It is given in splenic, renal and hepatic
complaints. |
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A suffrutescent or herbaceous, short-lived
perennial.
The active principle in chili is a mixture of
allied components, capsaicin being the most important, major
component (46-77% of the total capsainoids). Chili is a powerful
irritant and rubefacient; when applied to the skin, it produces
warmth, redness, and burning without blistering.
In the form of ointment of plasters, it is used
externally for the treatment of rheumatism, lumbago and
neuralgia. Capsicum wool, prepared by dissolving the oleoresin
in ether and pouring it on absorbent cotton-wool, is useful in
rheumatoid affections. Chili, in small doses, is a powerful
stimulant and carminative. It stimulates the secretion of saliva
and gastric juice, and increases peristaltic movements and
motility of the stomach. It is an excellent remedy in atonic and
flatulent dyspepsia and dipsomania. |
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Latin Name:
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Carica papaya |
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English Name:
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Papaya |
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Sanskrit / Indian Names:
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Chirbhita,
Erandachirbhita |
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Carica
papaya
(Papaya) is a small tree with straight and soft stem with leaf
scars on it. The fruits are a good source of pection. It removes
freckles and smoothes the skin. |
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An annual or
biennial glabrous herb.
Carvone and limonene are the chief constituents
of the oil and its odor and flavor are mainly attributed to
them. Other constituents present in the oil are: a- and ß-pinenes
and p-cymene.
In medicine, they are used as a carminative, mild
stomachic, aromatic and diuretic. Both the seeds and the
essential oil (caraway oil) are classed as carminative in the
I.P. and prescribed in flatulent colic and stomach derangement.
In patients suffering from lumbago and
rheumatism, exposing the affected parts to the vapors from the
seeds gives relief from the disease. The alcoholic extract of
the fruits shows dose-dependent antispasmodic effect. Caraway
water finds use as a vehicle for pediatric medicines.
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An erect,
glabrous or minutely pubescent branched annual, with aromatic
fruits.
The characteristic odor and taste of the fruit is
due to the presence of an essential oil. The fruits are much
valued for its antispasmodic, stimulant, tonic and carminative
properties. It is administered in flatulence, atonic dyspepsia
and diarrhea, and often recommended for cholera. The oil from
the fruits is reported to possess hypotensive and cardiac
depressive activity. The drug also shows some anti-diuretic
effect.
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A shrub or a tree with a pale yellow bark.
The root and the root bark are extensively used
in the indigenous system of medicine as an anti diabetic due to
their hypoglycemic activity. The roots are especially
efficacious in milder chronic diabetic cases. The root contains
leucopelargonidin, arabinose, dulcitol. ß-sitosterol and another
sterol, and two resinous substances having hypoglycemic activity
have also been reported. |
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Cassia
fistula
is a deciduous tree with exfoliating bark.
The pulp contains sennosides A and B, Rhein and
its glucoside, barbaloin, aloin, formic acid, butyric acid,
their ethyl esters and oxalic acid. It is a safe purgative given
even to pregnant women. The pulp is also given for biliousness
and in disorders of the liver. It is applied in gout and
rheumatism. It is utilized in blood-poisoning, anthrax and
dysentery, also given in leprosy and diabetes and for the
removal of abdominal obstructions.
It is used in the treatment of varicose veins. It
helps in shrinking engorged veins and has a powerful
anti-inflammatory effect. |
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Cassia
occidentalis
is a diffuse undershrub.
The plant contains emodin, physcion, chrysophanol,
sitosterol and a xanthone-cassiolin. The seeds and leaves are
used externally in skin diseases. The roots are reported to be
diuretic, the seeds, roots and leaves are antibacterial. It is
used in the treatment of flatulence, indigestion and other
digestive disturbances in children.
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The most common and widely occurring species of
lac insect in India is Laccifer lacca (Kerr) which produces the
bulk of commercial lac.
Lac is the resinous protective secretion of the
tiny lac insect. The major constituent of sticklac is the resin
(70-80%); other constituents present are: sugar, proteins, and
soluble salts, coloring matter, wax, sand, woody matter, insect
bodies and other extraneous matter; a volatile oil is present in
traces. Lac resin is composed of mainly hydroxy fatty acids of
C14- C18 carbon chains, such as aleuritic, butolic, C14- C16
mono- and di-hydroxy acids along with hydroxy terpenic acids
having the rare cedrene skeleton as jalaric, laccijalaric,
shellolic, and laksholic acids. |
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It is a large
evergreen tree. The bark is thick, furrowed vertically and
cracked transversely.
It has anti-inflammatory activity and is used for
its activity against human pathogenic Epidermophyton,
Trichophyton, Absidia ramosa and Microsporon gypsum. It has
proven effective in a number of dermal diseases. |
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A large,
woody, climbing shrub with a yellow, corky bark.
The seeds possess emetic, diaphoretic, febrifuge
and nervine properties and are used for sharpening the memory
and also used to cure sores, ulcers, rheumatism and gout. The
drug is used in the traditional system of medicine as a
sedative. The reported constituents are Mal III A, Mal III B, triterpenoids zeylasterone, and seylasteral. Its therapeutic
uses include treating anxiety and beriberi. Alcoholic extract
has anti-inflammatory and sedative properties. An herbal extract
of the crude drug was tested for its adaptogenic properties, on
mice. It showed significant CNS depressant effect and a clear
synergism with pentobarbital.
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Centella
asiatica
is a prostrate, stoloniferous, perennial weed found in crop
fields.
It includes the glycosides indocentelloside,
brahmoside, brahminoside, asiaticoside, thankuniside and
isothankuniside. In ayurveda, the plant is used for the
treatment of leprosy and skin diseases and also to improve
memory, as an antidote to cholera, and in bronchitis, asthma,
gastric trouble, catarrh, leucorrhea, kidney troubles,
urethritis and dropsy. The plant also has tranquilizing,
anabolic, antiprotozoal and spasmolytic properties.
It helps to improve memory, increases
concentration and intellectual ability in children.
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It consists of the following ingredients:
Aegle
marmelos, Clerodendrum phlomidis, Oroxylum indicum,
Gmelina arborea, Stereospermum chelonoides, Sida
cordifolia, Desmodium gangeticum, Uraria picta,
Phaseolus trilobus, Teramnus labialis, Piper longum,
Tribulus terrestris, Solanum indicum, Solanum
xanthocarpum, Pistacia integerrima, Phyllanthus amarus,
Vitis vinifera, Leptadenia reticulata, Inula racemosa,
Aquilaria malaccensis, Terminalia chebula, Tinospora
cordifolia, Dioscorea bulbifera, Microstylis muscifera,
Microstylis wallichi, Hedychium spicatum, Cyperus
rotundus, Boerhaavia diffusa, Polygonatum cirrihfolium,
Elettaria cardamomum, Santalum album, Nymphaea stellata,
Pueraria tuberosa, Adhatoda vasica, Lilium polyphyllum,
Pentatropsis capensis, Emblica officinalis.
It is a rejuvenative, geriatric and
cardiac tonic, which is useful in the treatment of
cough, asthma and debility. |
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Latin Name:
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Cicer arietinum |
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English Names:
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Bengal Gram,
Chickpea |
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Sanskrit / Indian Names:
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Chanaka |
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An erect or
spreading much-branched annual herb, covered all over with
glandular hair, extensively cultivated.
Whole gram contains saccharose, glucose,
fructose, polysaccharides including starch, g-galactan, levulose
and p -galactoaraban, betaine, choline, adenine, inositol,
phytin, saponin and citric and oxalic acids. The fresh whole
germ of sprouting gram contains biochanin A, biochanin B and
biochanin C. The isoflavones, biochanin A and formononetin are
reported to be estrogenic and also show hypolipidemic activity.
Gram is a potent hypocholesterolemic agent. The
anti-stress, anti-hyperlipidemic and stamina building activity
of gram may be due to the presence of pangamic acid and a free
nucleotide. It is a stimulant, tonic, aphrodisiac, anthelmintic,
and useful in bronchitis and biliousness. It is also useful in
leprosy and other skin diseases. The powdered seed is used for
dandruff and also used as a face pack.
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Cichorium
intybus
is an erect perennial herb.
The root contains tannin phlobaphenes and
reducing sugars. The seeds have carminative and cordial
properties and are useful as a brain tonic and for headache, asthma and bilious vomiting.
It is an acclaimed hepatoprotective, and, is used
in hepatic enlargement, fever, vomiting and abdominal pain. It
has cholagogue and anti-inflammatory properties.
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A large,
handsome, evergreen cultivated in India as an ornamental and as
a source of camphor.
Camphor is obtained as colorless or white
crystals, granules or crystalline masses, or colorless to white
translucent, tough masses. Camphor acts as a carminative, reflex
expectorant and reflex stimulant of the heart, circulation and
respiration. Camphor has also been used as a nervine depressant
in hysteria, epilepsy, chorea and convulsions and as an
aphrodisiac. The oil extract has a peculiar fragrance and acts
as an skin stimulant and counter irritant when applied
externally. |
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An evergreen
aromatic tree with a grey, smooth, thick bark which yields an
oil containing cinnamaldehyde, and eugenol.
Chinese Cassia has been used as a diaphoretic,
antipyretic and analgesic. It is used as a carminative,
purgative and astringent. It is also useful as a cardiac
stimulant, refrigerant, and diuretic, for stimulation of liver
functions, in neuralgia, uterine pains, ascites and edema.
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A moderate
sized tree, native to Sri Lanka and cultivated in South India
for its aromatic bark.
The bark contains a significant amount of a
mucilaginous substance, which consists mainly of a water
extractable L-arabino-D-xylan and an alkali-extractable D-glucan.
The bark also contains the diterpenes, cinnzeylanin and
cinnzeylanol besides tannin.
The bark is used to a limited extent in medicine.
It is aromatic, astringent, stimulant, expectorant and
carminative. It possesses the property of checking nausea and
vomiting. As a stimulant it is beneficial in cramps of the
stomach, gastric irritation, and paralysis of the tongue. Ground
cinnamon shows lipolytic activity. It is useful in diarrhea and
dysentery. Externally, the bark is used in neuralgia, rheumatism
and toothache. A decoction of the bark is reported to be used
for cancer of the stomach, rectum and uterus.
It is a good anti-infective agent and is useful
in relieving cough due to its soothing action. |
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A spreading,
round-topped almost thornless tree.
The rootbark contains ß-sitosterol and the
following acridone alkaloids: citpressine-I and II, citracridone-
I and II, glycocitrine-I, grandisine-I and II, grandisinine,
5-hydroxynoracronycine, honyumine and natsucitrine-II.
The fruit is considered to be nutritive and
refrigerant. It is a rich source of vitamins, particularly
vitamin C, which have an effective antioxidant action. The seeds
have similar properties and are sometimes given for lumbago.
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A spinescent
tree up to 6 m in height.
The juice is a rich source of
vitamin C. It
protects the skin from oxidative damage and helps in preventing
pruritus. Lemon peel is stomachic and carminative. Oil of lemon
is stimulant and rubefacient when applied externally.
Lemon juice is one of the best remedies for
scurvy and serves as a refrigerant in febrile and inflammatory
affections, acute rheumatism, dysentery and diarrhea. The juice
diluted with water is used as a collyrium. The juice also
possesses bactericidal and astringent properties. Lemon peel is
used in cosmetics, as a hair-rinse and mouth-freshener. It
possesses insect repellant property.
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It is a small
shrub or tree with thorny branches and lemon yellow colored
oblong fruits. The fruit juice is refrigerant and astringent.
The fruits have potent anti-scorbutic activity. |
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It is a small
spiny tree with slender branches widely grown in India. The
fruit rind and segments are easily separable. The fruit oil is
reported to have limonene. It is used traditionally as a sun
cream. |
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A tall and
stately palm, bearing a crown of large, pinnate leaves.
The oil extract is a good emollient, can be used
externally for softening the lips and in various cosmetics. It
is used in uterine diseases and a polysaccharide factor in the
plant is immunomodulator. |
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Latin Name:
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Coleus
vettiveroides |
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Sanskrit / Indian Name:
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Hrivera |
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It is a small
and succulent herb, with pubescent leaves and fibrous roots,
which are strongly aromatic. It has anti-bacterial, deodrant and
cooling properties. |
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It is a small
tree or shrub with spinescent branches.
Its gum resin has astringent, antiseptic and
antisuppurative properties and is used in the treatment of
hemorrhoids. It is excreted by the mucous membranes of the body,
in the course of which it stimulates and disinfects their
secretions. It also contains guggulsterones Z and E,
guggulsterols I - V, two diterperoids-a terpene hydrocarbon
named cembrane A.
It is used against obesity. Guggulipid is
hypocholesteremic and assists in burning excess body fat.
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An herb found in the plains of north India.
The plant contains the alkaloids convolvine,
convolamine, phyllabine, convolidine, confoline, convoline,
subhirsine, convosine, and convolvidine along with scopoline and
ß-sitosterol. Besides, high-density lipoprotein was
significantly raised in the animals.
The plant is reported to be a memory-improving
drug. It is used as a psycho-stimulant and tranquilizer. |
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An annual
herb, with small, white or pinkish purple flowers borne on
compound terminal umbels.
The aromatic odor and taste of coriander fruits
is due to an essential oil. The chief constituent of the oil is
coriandrol. The fruits are considered anti-microbial,
astringent, carminative, diuretic, tonic, stomachic, antibilious,
refrigerant and aphrodisiac.
An infusion of the seeds is useful in flatulence,
indigestion, vomiting and other intestinal disorders; it is also
used in bleeding piles, rheumatism, neuralgia, caphalagia, and
locally, in eye-infection. The dried seeds are reported to
possess diuretic and aphrodisiac properties.
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It is a
medium sized deciduous tree found throughout India, especially
along the river banks.
It has anti-inflammatory, diuretic, lithontriptic,
demulcent and tonic properties. Bark yields ceryl alcohol,
friedelin, lupeol, betulinic acid and diosgenin.
It is useful in disorders of urinary organs,
urinary tract infections, pain and burning micturition, renal
and vesical calculi.
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Crocus sativus
is a small bulbous perennial herb. It is valued for its famed
condiment, saffron, constituted by the stigma and style of the
flower.
It contains the glycosides crocin and picocrocin
together with lycopene, b-carotene, g-carotene and zeaxanthin.
It is rich in riboflavine and also contains thiamine. Saffron is
used as a nervine sedative and emmenogogue and in fevers,
melancholia and enlargement of the liver. It also has stimulant
and stomachic properties.
It has an essential oil, the active ingredient of
which is aphrodisiac in nature. The mechanism of its
sex-stimulating activity is effected by a slight stimulation of
the central nervous system. |
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A trailing or
climbing annual, bearing elongated, thick, cylindrical fruits of
varying sizes and forms.
The aerial parts of the plant contain a
14a-methyl D-phytosterol. Shikimate dehydrogenase is extracted
from cucumber pulp. It helps to keep the facial skin soft, has
healing and soothing effect on the damaged skin and exerts a
natural sunscreen. It acts as a toner and lightens the facial
skin. The seeds are reported to be cooling, tonic and diuretic.
The seed kernel (forming 75% of the seeds) is edible and used in
confectionery. |
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A small,
slender annual herb, with a much-branched angular or striated
stem, bearing 2 or 3 partite linear leaves, bluish green in
color and having sheathing bases.
The chief constituent of the volatile oil is
cumaldehyde. In indigenous medicine, cumin seeds have long been
considered stimulant and carminative. They are stomachic,
astringent and useful in diarrhea and dyspepsia; improves
appetite and taste. They are now chiefly used in Veterinary
medicine. The seeds showed antifertility and abortifacient
activity in female rats. They have been credited with
aphrodisiac properties.
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Curcuma
longa
is a perennial herb, with tufted leaves and a short and thick
rhizome that constitutes the turmeric of commerce.
It's principal constituent is Curcumin, which is
a diferuloyl methane. In Indian systems of medicine, turmeric is
used to some extent as a stomachic, tonic and blood purifier. It
is also prescribed as an antiperiodic alterative. Externally, it
is applied to indolent ulcers. A decoction of the rhizome is
said to relieve the pain of purulent ophthalmia.
Oil of turmeric, distilled from the dried
rhizomes, has feeble antiseptic properties. It is an antacid,
and, in small doses, acts as a carminative, stomachic, appetizer
and tonic. In large doses, however, it appears to act as an
antispasmodic inhibiting excessive peristaltic movements of the
intestines. Turmeric also possesses anti-inflammatory
properties. |
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It is a
native of northeast India, found in deciduous forests and
closely resembles Curcuma longa in appearance but has a
large sized tuberous rootstock.
Its taste and odor resembles Zingiber
officinale, but with a fainter aroma. Curzerenone and
zederone are the main components of the essential oil. In
indigenous medicine, it is prescribed as a stomachic. It has a
local effect on the digestive organs and has been employed as a
gastrointestinal stimulant in flatulent colic. It also prevents
stress ulceration.
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A hardy
perennial grass with creeping culms.
A decoction of the plant is diuretic, and
considered useful in dropsy and anasarca. The expressed juice is
astringent, and is applied to bleeding cuts and wounds. The
rhizomes and roots are used as adulterants and substitutes for
couch grass (Agropyron repens Beauv.) rhizomes that are used in
genitourinary disorders (B.P.C., 77; U.S.D., 1242). |
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A perennial weed with dark green glabrous culms,
arising from a system of underground tubers.
The tubers contain an essential oil. The tubers
are diaphoretic and astringent. They are also credited with
diuretic, antihelmentic, anti-inflammatory, carminative,
stomachic, emmenagogue and stimulant properties. |
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Cyperus
scarious is a delicate, slender small herb with deep brown
aromatic tubers.
The tubers are credited with astringent,
diaphoretic, diuretic, desiccant, cordial and stomachic
properties. A decoction of the tuber is used for washing hair,
treating gonorrhea and syphilis. It is also given in diarrhea
and for general weakness.
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