Saturday 21 December 2013

Posted by Rahul Sharma Posted on 04:52 | No comments

Datura inoxia Mill. (thorn-apple)

Datura inoxia Mill.

thorn-apple !!

COMMON NAME: thorn-apple, downy thorn-apple, Indian-apple, lovache, moonflower, sacred datura, nacazcul, toloatzin, tolguache or toloache

BOTANICAL NAME :
Datura inoxia Mill.

FAMILY : Solanaceae

DISTRIBUTION:
It is native to Central and South America, and introduced in Africa, Asia, Australia and Europe.

BOTANICALLY :
**Datura inoxia is an annual shrubby plant that typically reaches a height of 0.6 to 1.5 metres.

**Its stems and leaves are covered with short and soft grayish hairs, giving the whole plant a grayish appearance.

**It has elliptic entire-edged leaves with pinnate venation.

**All parts of the plant emit a foul odor similar to rancid peanut butter when crushed or bruised, although most people find the fragrance of the flowers to be quite pleasant when they bloom at night.

**The flowers are white, trumpet-shaped, 12–19 cm (4.75-7.5 in) long.They first grow upright, and later incline downward. It flowers from early summer until late fall.

**The fruit is an egg-shaped spiny capsule, about 5 cm in diameter. It splits open when ripe, dispersing the seeds.

**Another means of dispersal is by the fruit spines getting caught in the fur of animals, who then carry the fruit far from the mother plant. The seeds have hibernation capabilities, and can last for years in the soil. The seeds, as well as the entirety of this plant, act as deliriants, but have a high probability of overdose.

TOXITY: All parts of Datura plants contain dangerous levels of poison and may be fatal if ingested by humans and other animals, including livestock and pets. In some places it is prohibited to buy, sell or cultivate Datura plants.

CULTIVATION & USES: When cultivated, the plant is usually grown from seed, but its perennial rhizomes can be kept from freezing and planted in the spring of the following year.
Datura inoxia, like other Datura species, contains the highly toxic alkaloids atropine, hyoscine (scopolamine), and hyoscyamine. The Aztecs called the plant toloatzin, and used it long before the Spanish conquest of Mexico for many therapeutic purposes, such as poultices for wounds where it acts as an anodyne.[citation needed] Although the Aztecs warned against madness and "various and vain imaginings", many native Americans have used the plant as an entheogen for hallucinations and rites of passage. The alkaloids of these plants are very similar to those of mandrake, deadly nightshade, and henbane, which are also highly poisonous plants used cautiously for effective pain relief in antiquity.
Datura intoxication typically produces a complete inability to differentiate reality from fantasy (delirium, as contrasted to hallucination); hyperthermia; tachycardia; bizarre, and possibly violent behavior; and severe mydriasis with resultant painful photophobia that can last several days. Pronounced amnesia is another commonly reported effect. There can easily be a 5:1 variation in toxins from plant to plant, and a given plant's toxicity depends on its age, where it is growing, and local weather conditions. These wide variations make Datura exceptionally hazardous to use as a drug. In traditional cultures, users needed to have a great deal of experience and detailed plant knowledge so that no harm resulted from using it. Such knowledge is not widely available in modern cultures, so many unfortunate incidents result from ingesting Datura. In the 1990s and 2000s, the United States media contained stories of adolescents and young adults dying or becoming seriously ill from intentionally ingesting Datura.
It has also been planted throughout the world as an ornamental plant for its attractive large leaves, large white flowers, and distinctive thorny fruit. However, the plant is now considered an invasive species in several locations. For example, because of the similarity of its life cycle to that of cotton, it is a pest in cotton fields. It is also a potential seed contaminant.

TRADITIONAL USES: 
Datura innoxia, or toloache, is the most ethnopharmacologically important of all thorn apple species in the Americas. Excavations dating to 1200 C.E. have shown that the prehistoric Pueblo Indians of the Southwest used the seeds in rituals (Litzinger 1981). The plant has also clearly been used in Mexico since the prehistoric period. It has been suggested that Aztec sacrificial victims were given Datura preparations in order to prepare them for death. At present, toloache is still used in Mexico for medicinal, ritual and aphrodisiac purposes (Ratsch 1998, 196).
In the Yucatan, D. innoxia is regularly cultivated as an ornamental and an entheogen. Shamans smoke cigars rolled from D. innoxia leaves or eat the seeds in order to do divinations with quartz crystals. Tarot cards are also sometimes used. The datura is said to allow the shaman to gain insight he would not have been able to discover otherwise. The flowers are used as offerings for the gods in ritual, as well (Ratsch 1998, 197).
In modern Mexican witchcraft, or brujeria, toloache has a connection to dark practices and a reputation for causing insanity and death. It is said to give the user dark power. The Huichol regard D. innoxia as a ‘bad plant of the gods’ and associate it with sorcery (Ratsch 1998, 198).
D. innoxia is sacred to the Navajo, who use it in healing ceremonies. During one ceremony known as the Beautyway, D. innoxia preparations are consumed to produce visions. The plant is also used as a medicine to treat hallucinations. The Navajo take small amounts of D. innoxia to protect themselves from the attacks of dark sorcerers, and utilize the plant in divination and love magic. The Navajo Ajilee ceremony is one in which the practitioner is transformed into the Datura spirit and is able to gain power over women he desires and game he wishes to hunt. The ritual is also used to heal individuals who are suffering from sexual excess, and women who have been forced into prostitution (Brugge 1982). The Apache use powdered D. innoxia root in secret ceremonies as a plant medicine. Hopi medicine men chew the roots to induce visions that allow them to diagnose diseases (Ratsch 1998, 199).
D. innoxia was introduced to Pakistan from the Americas and now grows wild there. A few crushed seeds or a dried leaf mixed with tobacco (Nicotiana tabacum) is used as an aphrodisiac and inebriant (Goodman & Gharfoor 1992 cited in Ratsch 1998, 199). In India, D. innoxia is used in the same way as D. metel.

TRADITIONAL PREPARATION: The dried leaves and flowers of D. innoxia may be smoked alone or with other herbs in a smoking blend. Yucatec Maya shamans combine the leaves with tobacco to make cigars that they call chamal. One leaf of each plant is used to make one chamal. The shaman smokes until he reaches the state of consciousness he desires. The amount needed varies considerably from person to person. The seeds and leaves of D. innoxia may be crushed and fermented to make an alcoholic beverage. The roots are sometimes added to pulque, beer, or chicha (Rasch 1998, 197).
The Yaqui tribe add crushed seeds and leaves of D. innoxia to lard and rub this ointment on to the abdomen in order to induce visions. Fresh roots may be crushed and applied externally, chewed, or dried and powdered. However, dosage information regarding the roots is not available (Ratsch 1998, 197).
Four leaves is an appropriate dose for smoking if one wants to receive the aphrodisiac effects of the plant. Working with the plant in this way prevents overdose, as well. Tea made from the leaves should be consumed carefully – just one small leaf can cause very intense hallucinations. Alkaloid concentration will vary widely from plant to plant, and individuals can react very differently to tropane alkaloids, so detailed dose information is difficult to provide. 30-40 seeds is considered a strong visionary dosage, but as few as 10 seeds can result in significant perceptual changes. In Pakistan, 150 grams of leaves, fruits, or flowers is considered to be a lethal dose, but even significantly less than this can cause death in some individuals (Goodman & Ghafoor 1992 cited in Ratsch 1998, 197).

MEDICINAL USES: In Mexico, toloache is used as a remedy for many disorders and symptoms, particularly fevers. The Apache use the juice of the flowers and roots to disinfect wounds. Dew drops that have collected in the flowers are used as an eye wash (Ratsch 1998, 199).
The Aztecs used thorn apple leaves to treat broken bones and swollen joints. Leaves that had been warmed in a steam bath were placed directly on to the affected areas. Toloache is one of the most important aphrodisiacs and sedatives in Mexican folk medicine. It is given during childbirth to help with pain. In Israel, a decoction of the leaves is consumed to treat diarrhea, and a paste of the leaves is applied externally to treat pain (Dafni & Yaniz 1994). In many parts of the world, the leaves of D. innoxia have been smoked, alone or in blends, as a most effective treatment for asthma (Ratsch 1998, 200).

TRADITIONAL EFFECTS: The entire D. innoxia plant is rich in tropane alkaloids, particularly scopolamine and hyoscyamine. Some plants produce significantly more scopolamine than others. The effects of D. innoxia are dependent on dosage and method of preparation. The American Indians say that a mild dosage produces medicinal, healing effects, a moderate dosage produces aphrodisiac effects, and high doses produce shamanic visions (Ratsch 1998, 200).
Shamanic doses of D. innoxia cause profound visions and hallucination and delirium. Overdose may begin with excitation, an urge to dance and fits of laughter, and end in acute hallucinosis and death through respiratory paralysis. In Mexico, peyote is used as an antidote for toloache overdose (Nadler 1991 cited in Ratsch 1998, 201).



SOURCES :

>>http://en.wikipedia.org/wiki/Datura_inoxia
>>http://entheology.com/plants/datura-innoxia-toloache/


Tuesday 10 December 2013

Ranunculus sceleratus subsp. sceleratus 

CELERY-LEAVED BUTTERCUP---- POISONOUS WEED !!
COMMON NAMES : blister buttercup, celery buttercup, celery leaved crowfoot, celery ranunculus, celery-leaf buttercup, celeryleaf buttercup, celery-leaf crowfoot, celery-leaf crowsfoot, celery-leaved buttercup, cursed buttercup, cursed crowfoot, cursed crowsfoot, marsh crowfoot, poison buttercup 

BOTANICAL NAME : Ranunculus sceleratus subsp. sceleratus

FAMILY : Ranunculaceae

ORIGIN : The exact range of this species is obcure, but it is thought to be native to northern Africa (i.e. northern Algeria, northern Egypt, Morocco and Tunisia), Europe, western and northern Asia (i.e. Afghanistan, Iran, Iraq, Israel, Lebanon, Syria, Turkey, Armenia, Azerbaijan, Georgia, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan, Mongolia, China and Japan), the Indian Sub-continent (i.e. Bhutan, northern India, Nepal and Pakistan) and North America (i.e. most of the USA).

GEBERAL DESCRIPTION:
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil and can grow in water.

HABIT AND HABITAT :Celery-leaved buttercup (Ranunculus sceleratus subsp. sceleratus) generally grows in moist or muddy sites (e.g. along drainage lines, on riverbanks, in swamps and marshes, in moist low-lying areas and in poorly drianed pastures) and can displace native species from such areas. It is listed as an environmental weed. Grows up to 2 feet tall in marshy or shallowish wet places. It is native to North America and Eurasia, where it grows in wet and moist habitat, including ponds and streambanks. It is an annual herb growing up to half a meter tall.

STEM :Very stout main stem, with side branches at intervals. Glossy leaves.The stalks have single yellow flowers at the tips.The stems are hollow.

LEAVES: The leaves have small blades each deeply lobed or divided into usually three leaflets. They are borne on long petioles.
Upper stem leaves are commonly three-lobed and narrower than the palmately lobed leaves lower down. Leaves shiny, darkish green with very short hairs. Upper surface of petals is shiny, underneath matt.Palmately lobed dark-green, shiny lower leaves.

FLOWER: The flowers are hermaphrodite (have both male and female organs).Each flower has an elongated fruit in the middle. Flowers have five typically buttercup shiny yellow petals. The flower has three to five yellow petals a few millimeters long and reflexed sepals.

FRUITS: The fruits grow bigger, losing the petals. Fruits have numerous small pimples. The fruit is an achene borne in a cluster of several.

TOXICITY : ==>It has an acrid taste and is poisonous, containing Ranunculin which is converted to the poisonous Protoanemonin by the action of enzymes, which it contains and are released on damage. On the skin the sap will cause severe irritation and blisters with ulceration. If eaten, diarrhoea, abdominal pains, tinnitus, headache, dizziness, seizures, tachycardia, nephritis and perhaps death by respiratory and cardiac arrest. Accidental poisoning of cattle is more common.

==>Ranunculus sceleratus
(marsh buttercup.)
Gnawing and screwing pains in the evenings and before mid-night.
Twitches in the limbs.
Fainting from pain.
The pains are aggravated in the evening and diminish toward mid-night and are followed then by sleeplessness.
Periodical complaints.
Sensation of enlargement of the head.

==>Celery-leaved buttercup (Ranunculus sceleratus) is a native herb found across most of Canada. This plant contains a toxic irritant that produces protoanemonin upon mastication. All types of livestock can become ill upon ingestion, but cattle are most commonly affected. Horses and goats have also been poisoned (Cooper and Johnson 1984, Fuller and McClintock 1986).

SOURCES :
>>http://wildflowerfinder.org.uk/Flowers/B/Buttercup(CeleryLeaved)/Buttercup(CeleryLeaved).htm

>>http://keyserver.lucidcentral.org/weeds/data/03030800-0b07-490a-8d04-0605030c0f01/media/Html/Ranunculus_sceleratus_subsp._sceleratus.htm

>>http://www.cbif.gc.ca/pls/pp/ppack.info?p_psn=242&p_type=all&p_sci=sci

>>http://www.pfaf.org/user/Plant.aspx?LatinName=Ranunculus+sceleratus

>>http://www.webmd.com/vitamins-supplements/ingredientmono-55-Ranunculus%20sceleratus%20(POISONOUS%20BUTTERCUP).aspx?activeIngredientId=55&activeIngredientName=Ranunculus+sceleratus+%28POISONOUS+BUTTERCUP%29


Posted by Rahul Sharma Posted on 05:05 | No comments

Anethum Sowa Roxb [DILL]

Anethum Sowa Roxb.

DILL !!
COMMON NAME: English Name:Dill, Sowa, soya, ans more.

BOTANICAL NAME :Anethum Sowa Roxb 


FAMILY :Apiaceae / Umbellifarae

PART USED: Seeds, Leaves

GENERAL DESCRIPTION: It has been used in ayurvedic medicines since ancient times and it is a popular herb widely used as a spice and also yields essential oil. It is an aromatic and annual herb of apiaceae family. The Ayurvedic uses of dill seeds are carminative, stomachic and diuretic. There are various volatile components of dill seeds and herb; carvone being the predominant odorant of dill seed and α-phellandrene, limonene, dill ether, myristicin are the most important odorants of dill herb. Other compounds isolated from seeds are coumarins, flavonoids, phenolic acids and steroids. The main purpose of this review is to understand the significance of Anethum graveolens in ayurvedic medicines and non-medicinal purposes and emphasis can also be given to the enhancement of secondary metabolites of this medicinal plant.

BOTANICALLY :
**Dill grows to 40–60 cm (16–24 in), with slender stems and alternate, finely divided, softly delicate leaves 10–20 cm (3.9–7.9 in) long.

**The ultimate leaf divisions are 1–2 mm (0.039–0.079 in) broad, slightly broader than the similar leaves of fennel, which are threadlike, less than 1 mm (0.039 in) broad, but harder in texture.

**The flowers are white to yellow, in small umbels 2–9 cm (0.79–3.5 in) diameter.

**The seeds are 4–5 mm (0.16–0.20 in) long and 1 mm (0.039 in) thick, and straight to slightly curved with a longitudinally ridged surface.


USES:
~~People Use This For:
Orally, dill is used for gastrointestinal disorders, loss of appetite, kidney disease, flatulence, fever and colds, cough, bronchitis, infectious disease, liver and gallbladder complaints, urinary tract disorders, hemorrhoids, spasms, neuropathy, renal colic, dysuria, genital ulcers, dysmenorrhea, and insomnia and other sleep disorders. Topically, dill seed is used for mouth and throat inflammation.
In foods, dill is used as a culinary spice.
In manufacturing, dill oil is used as a fragrance component in cosmetics, soaps, and perfumes.

ETHNOBOTANIC DATA:It is used to treat uterus fibroid in combination with calamus, crystal sugar, neem leaves, and onion bulb. Suppositories are made in butter.
It is also used for infertility with calamus.
When given orally in food increases lactation and reduces pain during menstruation.
It is also reported by ladies to be used for menstrual problem like menorrhea, amenorrhea, leucorrhea
It is used for expulsion of plasma membrane after child birth.
For menorrhea it is given orally with betel nuts.
Water of dill is given in fasting for amenorrhea.
In combination with herbs it lowers abdominal size after child birth.
It regulates menstrual cycle at their 1st menstrual cycle.
Scientific Data:
It increases lactation and prevent early pregnancy after birth.
It is used as emmenagogue, galactagogue also used in amenorrhea and dysmenorrhea.
It is antimicrobial19 and anti fungal.

SOURCES :>>http://www.iccs.edu/fmed/index.php?option=com_content&view=article&custompage=1&id=206&type=taluka&province=background

>>http://www.amazondiscovery.com/Dill.html

>>http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3249919/

>>http://en.wikipedia.org/wiki



Friday 6 December 2013

Posted by Rahul Sharma Posted on 04:27 | No comments

Coronopus didymus (L.) Sm. (lesser swine cress)

Coronopus didymus (L.) Sm.

Pitpapra (in hindi) !!

COMMON NAMES :
Swinecress, Pitpapra, Jangli halon, Wart cress, lesser swine cress, lesser swinecress

BOTANICAL NAME : Coronopus didymus (L.) Sm.

FAMILY : Brassicaceae (MUSTARD FAMILY)

DAIGNOSTIC FEATURES : The swine cress is a small and annual herb developed in rosette on the ground, of dark green tint. It loosens a strong and unpleasant smell when it is creased.The stem lies on the ground then raised. It is hairy and very branched out, in the base especially.
Leaves are arranged alternately along the stem. They are much divided, terminal division being of greater size than lateral divisions.Flowers are small and green. They are regrouped in dense clusters, directly inserted on the stem.The fruit forms a small green ball consisted of two verrucose halves. It contains two seeds isolated by a constriction. It does not open in maturity or parts in two parts.In India, C. didymus has a luxuriant growth and succulence giving its palatability and nutritive value for animals. This weed has a level of crude protein comparable with the standard legumes grown for

ECOLOGY, HABIT AND DITRIBUTION: Annual, hairless plant, procumbent or raised, of tint green - dark, developed in bow in the base. In cropping systems it appears in early and late season, but once established it seems to prosper whenever growing conditions are satisfactory. It is present on numerous grounds, generally clayey, wet, firmly packed or little structured.

ROOTS : Tap root.

STEM : Cylindrical, full, very branched out, slept on the ground, measuring from 10 to 40cm. Pubescent to glabrescent.

LEAVES :
Elliptic in elongated, petiolated in the base, sessiles in the summit. Basal leaves simple, pinnately similar of compound leaves. Segments usually pinnatifided, sometimes lobed only on the upper edge. The upper leaves, smaller, may be sessile or short petioled and the basal long petioled. Long from 7 to 8cms and 2cm wide. Summit of the limb and lobes apiculated. Hairless faces.

INFLORESCENCE: Small, white - greenish, gathered in brief and dense clusters or sessiles, in the axil of leaves. Perianth double consisted of 4 free, long sepals from 0,6 to 0,8mm, white - greenish; 4 petals, briefer than sepals, lengths about 0,5mm, or absent, white. Generally 2 stamens, sometimes 4; 2 carpels, 1 only stigma.

FRUIT: Silicle 2-seeded rounded, verrucose and indented in the summit, indehiscent, or opening in 2 parts with kidney shape. Long from 1,4 to 1,7mm and wide from 2 to 3mm. Surface reticulated, rough.

SEED: 2 by silicle, egg-shaped - ellipsoid, brown, granular. Long from 0,5 to 1mm.

SEEDLING:Cotyledons with an average size from 10 to 16mm in length 1 in 2mm wide. Linear and a little widened in bludgeon in the summit, eased in petiole.

(First two leaves generally linear and entire, rounded in the summit and eased in the base in a length petiole. In complete development, sometimes toothed and more rarely lobed. Following leaves divided, at first in 3 to 5 complete and narrow segments, then into numerous wide, cuneiform lateral segments, lobed and toothed. The terminal lobe is complete and of greater size than the lateral. Hairless faces.)

WEED CONTROL : 
- Chemical
2_4-D applied at 500 g/ha at flowering stage and at one week intervals for five weeks thereafter or Metsulfuron at 4 g/ha.

-Swinecress can be a quickly spreading weed and is frequently found in lawns and gardens. Cultural weed control methods may help to prevent the weed from entering your lawn; however, once the weed is present, professionally applied herbicides are usually best for control.

-Scotts LawnService uses a selective systemic weed control program to fight Swinecress in your lawn, which ensures the herbicide is moved throughout the weed, killing it completely root and all.

-Scotts LawnService is the trusted industry leader for professional quality lawn care. Our exclusive lawn care products include Scotts® Pure premium grass seeds and professional-grade fertilizers; our lawn service teams are made up of highly trained, industry-certified professionals. Contact a representative today for Swinecress control available in your area and to learn how you can enjoy a lush, thicker lawn that only Scotts LawnService can deliver.



SOURCES :

>>http://idao.cirad.fr/content/oscar/especes/c/copdi/copdi.html

>>http://www.scottslawnservice.com/sls/templates/index.jsp?pageUrl=slsswinecress

>>http://www.eattheweeds.com/coronopus-didymussquamatus-smelly-pot-herbs-2/

>>http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200009403

>>http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200009403

>>http://www.pfaf.org/user/Plant.aspx?LatinName=Coronopus+didymus

>>http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=2392

Wednesday 4 December 2013

Posted by Rahul Sharma Posted on 11:22 | No comments

Calotropis procera (Ait.) Ait. F (Apple of Sodom )

Calotropis procera (Ait.) Ait. F

Apple of Sodom !!

COMMON NAME : apple of Sodom, Sodom apple, mudar, or osher or stabragh, Aak, Ak, Akada, Alarka and many more.

BOTANICAL NAME : Calotropis procera (Ait.) Ait. F.

FAMILY : Asclepiadaceae

HABITAT AND HABIT : Found mostly in semi-arid and arid inland areas, as well as in the drier parts of tropical and sub-tropical regions. A weed of disturbed sites, roadsides, waste areas, near inland watercourses, coastal sand dunes, grasslands, open woodlands and pastures. Native of Hindustan, but widely naturalized in the East and West Indies and Ceylon.
Calotropis is found from sea level up to an altitude of 1300 m in semi-arid conditions (150 to 1000 mm annual rainfall) on sandy soils. However, it can withstand a wide range of soil textures. It is tolerant of soil salinity and of beach front salt spray. On excessively drained soils, it can withstand up to 2000 mm annual rainfall. It quickly becomes established in open habitats with little competition, along degraded roadsides, lagoon edges and in overgrazed native pastures and rangelands (Orwa et al., 2009). When calotropis is damaged, it readily develops suckers from the roots (Parsons et al., 2001). Calotropis seeds are spread by wind and animals and may be transported long distances in flood waters (Parsons et al., 2001).

DISTRIBUTION : 

>>Origin
Native to northern Africa (i.e. Algeria, Egypt, Libya, Morocco, Eritrea, Ethiopia, Somalia, Sudan, Kenya, Tanzania, Uganda, Cameroon, Equatorial Guinea, Gambia, Ghana, Guinea-Bissau, Mauritania, Nigeria, Senegal and Sierra Leone), the Arabian Peninsula (i.e. Saudi Arabia, Oman and Yemen), the Middle East (i.e. Iran, Israel, Jordan) and southern Asia (i.e. Afghanistan, Pakistan, Nepal, India, Myanmar, Thailand and Vietnam).

>>Naturalised Distribution
This species is widespread in the drier northern parts of Australia. It is mostly found in northern Queensland, north-western Western Australia and in the northern parts of the Northern Territory. Also present in other parts of the Northern Territory, and recorded in South Australia and New South Wales.
It has also become naturalised in parts of Central America, northern South America, the Caribbean, south-western USA (i.e. California) and in Hawaii.

>>Distinguishing Features"
+ a large shrub with waxy stems and leaves that contain a milky sap.

+ its relatively large greyish-green leaves (5-20 cm long and 4-10 cm wide) are borne in pairs and are stem-clasping.

+ its flowers (20-30 mm across) have five petals that are white with purplish-coloured tips and a purplish crown -like centre.

+ its fruit is a large (8-12 cm long) bladdery 'pod' that is greyish-green in colour.

+ this fruit splits open at maturity to release numerous seeds, each topped with a tuft of long, white, silky hairs.

DESCRIPTION : The flowers are fragrant and are often used in making floral tassels in some mainland Southeast Asian cultures. Fibers of these plants are called madar or mader. The plant is known as aak in Ayurveda and was used in cases of cutaneous diseases, intestinal worms, cough, ascites, asthma, bronchitis, dyspepsia, paralysis, swellings, intermittent fevers, anorexia, inflammations and tumors. In large doses, Arka is known to act as a purgative and an emetic.
The milky exudation from the plant is a corrosive poison. The latex is said to have mercury-like effects on the human body, and is some times referred to as vegetable mercury and is used in place of mercury in aphrodisiacs. It is used variously but sometimes leaves are fried in oil for medicinal purposes.
Calotropis species are usually found in abandoned farmland. Cattle often stay away from the plants because of their unpleasant taste and their content of cardiac glycosides.
Root bark has a Digitalis-like effect on the heart, but was earlier used as a substitute of ipecacuanha.
They are poisonous plants; calotropin, a compound in the latex, is more toxic than strychnine. Calotropin is similar in structure to two cardiac glycosides which are responsible for the cytotoxicity of Apocynum cannabinum. Extracts from the flowers of Calotropis procera have shown strong cytotoxic activity in the patients of colorectal cancer. They are harmful to the eyes.

LEAVES : The leaves are sessile and sub-sessile, opposite, ovate, cordate at the base.

STEM : Stem is cylinderical and hairy with waxy coating that appears to be grey.

FLOWER : The flowers are about 1.5 to 2 in (3.8 to 5.1 cm) in size, with umbellate lateral cymes and are colored white to pink .The flowers (15-25 mm across) are borne in clusters, each containing 3-15 flowers, in the forks of the uppermost leaves (i.e. in axillary inflorescences). The main stalk of these flower clusters (i.e. peduncle) is 20-55 mm long and each flower has a stalk (i.e. pedicel) about 15-25 mm long. These flowers have five spreading petals (7-10 mm long and 6-10 mm wide) that are white or pinkish in colour, with much darker purple or purplish-brown tips, and a crown-like centre (i.e. corona) that is also purplish in colour. They also have five sepals (about 5 mm long and 3 mm wide) that are oval (i.e. elliptic) or egg-shaped in outline (i.e. ovate) and five stamens. Flowering occurs mostly during winter.

FRUIT : The seeds are compressed, broadly ovoid, with a tufted micropylar coma of long silky hair.
The fruit is a large (6-12 cm long and 3-7 cm wide) bladdery 'pod' (i.e. follicle) that is greyish-green in colour and rounded (i.e. sub-globose) to somewhat egg-shaped (i.e. obliquely ovoid). These fruit have thick and spongy skins which split open at maturity. Each fruit contains numerous brown, flattened seeds (about 6 mm long and 4 mm wide) that are topped with a tuft (i.e. coma) of long, white, silky hairs (35-50 mm long).

POLLINATION : Pollination is performed by bees (entomophily) by the following mechanism:
The stigmas and androeciums are fused to form a gynostegium. The pollen are enclosed in pollinia (a coherent mass of pollen grains). The pollinia are attached to an adhesive glandular disc at the stigmatic angle. When a bee lands on one of these, the disc adheres to its legs, and the pollinium is detached from the flower when the bee flies away. When the bee visits another flower, the flower is pollinated by the adhering pollinium on the bee.

IMPACT ON ENVIRONMENT : 
>>Calotrope (Calotropis procera) is regarded as an environmental weed in the Northern Territory, Western Australia and Queensland. It thrives on poor soils, particularly where overgrazing has removed competition from native grasses, and forms dense thickets which compete with native plant species and transform the appearance of savanna plant communities. This species is culrrently listed as a priority environmental weed in three Natural Resource Management Regions and it is being actively managed by community groups in the Northern Territory.

>>The milky sap is toxic to humans and sometimes also to livestock. It can also hinder pastoralism by reducing the productivity of rangeland pastures and making mustering more difficult.

CONSTITUENTS : -A yellow bitter resin; a black acid resin; Madaralbum, a crystalline colourless substance; Madarfluavil, an ambercoloured viscid substance; and caoutchouc, and a peculiar principle which gelatinizes on being heated, called Mudarine. Lewin found a neutral principle, Calatropin, a very active poison of the digitalis type. In India the author's husband experimented with it for paper-making, the inner bark yielding a fibre stronger than Russian hemp. The acrid juice hardens into a substance like gutta-percha. It has long been used in India for abortive and suicidal purposes. Mudar root-bark is very largely used there as a treatment for elephantiasis and leprosy, and is efficacious in cases of chronic eczema, also for diarrhoea and dysentery.

USES :
Calotropis is a plant. People use the bark and root bark for medicine.

Despite serious safety concerns, calotropis is used for digestive disorders including diarrhea, constipation and stomach ulcers; for painful conditions including toothache, cramps, and joint pain; and for parasitic infections including elephantiasis and worms. Some people use calotropis for syphilis, boils, inflammation (swelling), epilepsy, hysteria, fever, muscular spasm, warts, leprosy, gout, snakebites, and cancer.

In inhalation therapy, smoke from the bark is inhaled for coughs, asthma, and to cause sweating.

How does it work?
Calotropis contains chemicals that might help thin mucous and make it easier to cough up. In studies in animals, calotropis has shown some activity against pain, inflammation, bacteria, fever, and ulcers caused by alcohol and medications such as aspirin, indomethacin (Indocin), and others.

SOURCES :
>>http://en.wikipedia.org/wiki/Calotropis_procera

>>http://www.arkive.org/sodoms-apple-milkweed/calotropis-procera/

>>http://www.webmd.com/vitamins-supplements/ingredientmono-797-CALOTROPIS.aspx?activeIngredientId=797&activeIngredientName=CALOTROPIS

>>http://www.himalayahealthcare.com/herbfinder/calotropis-procera.htm

>>http://www.feedipedia.org/node/588

>http://www.globinmed.com/index.php?option=com_content&view=article&id=85832%3Acalotropis-procera

>>http://www.botanical.com/botanical/mgmh/c/calotr09.html

>>http://keyserver.lucidcentral.org/weeds/data/03030800-0b07-490a-8d04-0605030c0f01/media/Html/Calotropis_procera.htm


Posted by Rahul Sharma Posted on 10:08 | No comments

Tridax procumbens (L.) L. (Caot Button)

Tridax procumbens (L.) L

COAT BUTTON !!


COMMON NAME : Tridax Daisy, Coat Buttons, Mexican Daisy 

BOTANICAL NAME :Tridax procumbens (L.) L.

FAMILY : Asteraceae (Sunflower family)

HABITAT AND HABIT : This pretty daisy-like flower is very common all over the plains of northern India. It is best known as a widespread weed and pest plant. It is native to the tropical Americas but it has been introduced to tropical, subtropical, and mild temperate regions worldwide. It is listed as a noxious weed in the United States and has pest status in nine states.

DESCRIPTION : Tridax daisy stands about 30-60 cm high

STEM : It has slightly hairy stems.

LEAF :
The leaves are ovate or lanceolate with toothed edges.

FLOWER : The small creamy or white flower has five petals which are notched on the outer edges. The centre of the flower is yellow. This plant has flowers all the year around, but from May to December is the time that it is fully in bloom. It is found along paths, roadsides and in the crevices of walls and rocks. It is a great favourite with low flying butterflies. In the areas where there is a great concentration of these flowers one will find plenty of butterflies too.

FRUIT : Its fruit is a hard achene covered with stiff hairs and having a feathery, plumelike white pappus at one end.

CHEMICAL CONSTITUENTS : A new flavonoid (procumbenetin), isolated from the aerial parts of Tridax procumbens, has been characterised as 3,6-dimethoxy-5,7,2',3',4'-pentahydroxyflavone 7-O-β-D-gluco- pyranoside on the basis of spectroscopic techniques and by chemical means.Tridax procumbens; Flavonoids Plant. Uses in traditional medicine. Commonly used in Indian traditional medicine as anticoagulant, hair tonic, antifungal and insect repellent, in bronchial catarrh, diarrhoea, dysentery, and wound healing. Previously isolated constituents. Alkyl esters, sterols, pentacyclic triterpenes , fatty acids and polysaccharides . New isolated constituent. 3,6-Dimethoxy-5,7,2',3',4'-pentahydroxyflavone 7-O-β- D-glucopyranoside , named procumbetin Žyield: 0.016% on dried basis..

USES : The leaves are cooked and eaten as a vegetable. Medicinally, they are used to treat bronchial catarrh, dysentery and diarrhoea. Uses in traditional medicine. Commonly used in Indian traditional medicine as anticoagulant, hair tonic, antifungal and insect repellent, in bronchial catarrh, diarrhoea, dysentery, and wound healing.

ECOLOGY : It is found along paths, roadsides and in the crevices of walls and rocks. It is a great favourite with low flying butterflies. In the areas where there is a great concentration of these flowers one will find plenty of butterflies too. Flowers attractive to butterflies and bees.


SOURCES :

>>http://www.flowersofindia.net/catalog/slides/Tridax%20Daisy.html

>>http://en.wikipedia.org/wiki/Tridax_procumbens

>>http://rmbr.nus.edu.sg/dna/organisms/details/559

>>http://opendata.keystone-foundation.org/tridax-procumbens-l

Saturday 30 November 2013

Posted by Rahul Sharma Posted on 03:32 | No comments

Heliotropium indicum L. (Indian heliotrope)

 Heliotropium indicum L.

HATHISHURA - NATIVE TO ASIA !!

COMMON NAME : Indian heliotrope.

BOTANICAL NAME : Heliotropium indicum L.

FAMILY : Boraginaceae (forget me not family)

HABITAT AND HABIT : common weed grows in disturbed areas close to water sources. On sunny, periodically moist, or marshy and desiccating sites; waste places, ditch borders, dried-up pools and ditches, on spread mud, along roads, common weed in waste places and settled areas often very common. Flowering season extended, the first-formed seeds already dropping while there are still unopened buds. Rainfed, upland and rice fields.

DESCRIPTION : commonly known as Indian heliotrope, is an annual, hirsute plant that is a common weed.

ROOT : Woody base with long Taproot-- white or brown.

STEM : It has a hairy stem, erect, grooved, hollow, bearing alternating ovate to oblong-ovate leaves. may be branched or unbranched.

LEAVES : Leaves simple, not lobed or divided, alternate, spiral, or sometimes basal ones opposite, stalked, ovate, more than 2 cm long/wide, hairy, scabrous, margin entire, apex acute, base obtuse or rounded, pinnately veined. Distinctly petiolate, petioles to 5 cm long. Its margin slightly wavy-crisped.

INFLORESCENCE :
The inflorescence uncoils after the central flowers, which are the oldest, mature. The flowers are arranged on only one side of the inflorescence.

FLOWER : Flowers are pale violet (lilac) with a yellow throat, but fading to dull white, calyx-lobes linear-lanceolate, ciliate, 2 mm long; corolla-tube 4-5 mm long; petals rounded.

FRUIT : Fruit nut-like, is 3.5 mm long, ovoid, ribbed, separating into 2 nutlets each 2-celled, 3-3.5 mm long. and immature fruit, the two lobes of the fruit are visible.

USES : 
>>Medicinal use:
In fusion of the leaves and young shoots are used to treat nettle rash. Infusion of the flowers taken in small doses regulates menstruation, where large doses are abortive. Decoction of the leaves are used as a vermifuge. Juice of the leaves is antiseptic and anti-inflammation and applied to wounds, sores, boils, gum-boils and pimples on the face. Boiled with castor oil, it is applied to scorption bites. It is also employed locally in nophthalmia, when the cornea is inflamed or excoriated.

ECONOMIC IMPORTANCE : 
>>In the Philippines, the plant is chiefly used as an herbal medicine. The extracted juice from the pounded leaves of the plants is used to cure wounds, skin ulcers and furuncles. The juice is also used as an eye drop for conjunctivitis. The pounded leaves are used as poultice.

SOURCES : 

>>http://en.wikipedia.org/wiki/Heliotropium_indicum

>>http://www.oswaldasia.org/species/h/helin/helin_en.html

>>http://www.flowersofindia.net/catalog/slides/Indian%20Heliotrope.html

>>http://www.globinmed.com/index.php?option=com_content&view=article&id=78943%3Aheliotropium-indicum-l-boraginaceae&catid=710%3Ah


Monday 25 November 2013

Posted by Rahul Sharma Posted on 00:38 | No comments

Argemone mexicana Linn. (Mexican poppy)

Argemone mexicana Linn.

Medicinal weed ""Satyanashi"" :- POISONOUS PLANT !!

COMMON NAME:
Mexican poppy, Mexican prickly poppy, Flowering thistle, Argemone mexicana Linn. known as Ghamoya is an indigenous herb found in India.

BOTANICAL NAME : Argemone mexicana Linn.

FAMILY: Papaveraceae

HABITAT : Habitat: In India it is introducd and naturalised and occur as wasteland weed in almost every part of India. In many parts it is repoorted as crop weed also. Weedy in disturbed areas in waste places, roadsides, old fields, pastures, barnyards, gardens.

RELATED SPECIES: It is native of Tropcal America. The genus Argemone includes 12 species. Some major species are: A. alba Lestib. ( used medicinally in North America ), A. platyceras Link. & Otto., A. grandiflora Sweet.

DESCRIPTION:
It is a prickly, glabrous, branching herb with yellow juice and showy yellow flowers, The Sanskrit name svarnakshiri is given because of the yellow juice (Svarna - Gold; Kshiri - Juice ). The height of this plant varies between 0.3 to 0.12 meters, Leaves are thistlelike.

STEM AND LEAF
:Stem clasping, Oblong, sinuately pinnatifid ( multiply cut, spiny, with white viens) , spinous and viens are white.

FLOWER: Flowers are terminal, yellow and of 2.5–5.0 cm diameter.

FRUIT: Fruits are capsule. Prickly and oblong ovoid. Seeds numerous, globose, netted and brownish black.

Flowering time is all round the year in Indian conditions. The plants is toxic to animals and cattle avoid grazing this plant. Harmful allelopathic effects of Argemone mexicana on germination and seedling vigour of wheat, mustard, fenugreek, sorghum, fingermillet, tomato, cucumber etc. (important crops in India ) have been reported. The allelochemicals cinnamic and benzoic acid are identified as harmful chemicals responsible for inhibition of germination and seedling vigor.

USEFUL PARTS: Roots, leaves, seeds and yellow juice.

TOXICITY:
The seeds resemble the seeds of Brassica nigra (mustard). As a result, mustard can be adulterated by argemone seeds, rendering it poisonous. Several significant instances of katkar poisoning have been reported in India, Fiji, South Africa and other countries. The last major outbreak in India occurred in 1998. 1% adulteration of mustard oil by argemone oil has been shown to cause clinical disease.
Katkar oil poisoning causes epidemic dropsy, with symptoms including extreme swelling, particularly of the legs.

MEDICINAL PROPERTIES AND USES:
According to Ayurveda the plant is diuretic. purgative and destroys worms. It cures lepsory, skin-diseases, inflammations and bilious fevers. Roots are anthelmintic. Juice is used to cure ophthalmia and opacity of cornea. Seeds are purgative and sedative. Seeds resemble mustard seeds and in India it is used to adulterate mustard seed. Seed yield non edible toxic oil and causes lethal dropsy when used with mustard oil for cooking.

In Homoeopathic system of medicine, the drug prepared from this herb is used to treat the problem caused by tape-worm.

POPULAR AYURVEDIC FORMULATIONS: Svarnakshiri churna and tail

OTHER USES: The plant is found suitable for the reclamation of alkaline soils.

Dried and powdered plants are recommended as green manure as it contain sufficient amount of Nitrogen, Phosphorus and Potassium.

Oilcake is used as manure.

Seed oil, popularly known as Satyanashi oil is used as an illuminant, lubricant, in soapmaking, and for protection from termites.

CHEMICAL CONSTITUENTS: The plant contains alkaloids as berberine, protopine, sarguinarine, optisine, chelerytherine etc. The seed oil contains myristic, palmitic, oleic, linoleic acids etc.

SOURCES: 
(1)http://www.ces.ncsu.edu/depts/hort/consumer/poison/Argemme.htm

(2)http://www.pharmainfo.net/reviews/argemone-mexicana-linn-ghamoya-weed-having-great-therapeutic-values-folk-remedies

(3)http://www.hort.purdue.edu/newcrop/CropFactSheets/argemone.html


Sunday 17 November 2013

Posted by Rahul Sharma Posted on 04:01 | No comments

Stellaria media (L.) Vill. (Common Chickenweed)

Stellaria media

"Common Chickenweed"-- cool-season annual plant !!

COMMON NAME: common chickweed, chickenwort, craches, maruns, winterweed.

BOTANICAL NAME: Stellaria media (L.) Vill. (Alsine media)

FAMILY: Carophyllaceae (pink family)

DESCRIPTION: It is a cool-season annual plant native to Europe, which is often eaten by chickens. It is sometimes called common chickweed to distinguish it from other plants called chickweed. The plant germinates in fall or late winter, then forms large mats of foliage. Flowers are small and white, followed quickly by the seed pods. This plant flowers and sets seed at the same time.

STEM: Its has weak stems mostly trail along the ground (for upto about 16inches), but the growing ends may be upright (up to 8inches high). The stems branch very frequently and take root at the leaf junctions. The stem has a single line of hairs running up the side, and this hairy line changes sides at each leaf junction.

LEAF: The leaves are opposite, smooth, and oval (with a point at the tip), and the older leaves are stalked, while the new leaves are not.

FLOWER: Chickweed is just about always flowering, except in the dead of winter. It has tiny white flowers, about a quarter inch in diameter, in the leaf axils or in terminal clusters, with five deeply notched petals that look like ten, and five green sepals that are longer than the petals. The flowers close at night and open in the morning. They also close when it's about to rain. Possibly they respond to changes in air pressure. It does seem that the flowers don't open at all when a low pressure system is lingering. Chickweed also reacts to nightfall by folding its leaves over the growing tip to protect it.

FRUIT: The flowers develop into small capsule-like fruits which contain many tiny seeds (up to 15,000 per plant).

ROOTS: It has a very slender tap root, shallow, fibrous, fragile roots.


OCCURENCE: Common chickweed, an annual or overwintering native plant, is one of the commonest weeds of cultivated land. It also occurs on roadsides, shingle riverbanks, coastal cliffs and in gardens. It is widely distributed over all soil types but is more abundant on lighter soils. It is favoured by high potassium levels and is indicative of high nitrogen and low phosphate and lime levels. It is absent from the most acidic soils. It thrives in areas of soil disturbance and declines when cultivation ceases for a long period. It is sensitive to drought and is one of the first weeds to wilt in dry conditions.

Common chickweed is a frequent weed of cereals, sugar beet and other arable crops. It grows best in cool, humid conditions and is a serious problem in overwintered vegetable and flower bulb crops.

Common chickweed can be very variable in size, habit and general appearance. Some of this may have a genetic basis and some may be due to soil and environmental effects. Summer and winter forms with different growth habits are thought to occur. In the past, common chickweed was often grouped with the closely related species S. neglecta and S. pallida. Three subspecies are recognised but only ssp. media occurs in the UK. Common chickweed populations have been found with resistance to the phenoxy-herbicide mecoprop and to certain sulfonylurea herbicides following repeated use of the chemicals.

Common chickweed is a host of several damaging virus diseases of crop plants. Some viruses can be carried in chickweed seeds that will grow into infected plants. The virus can persist for at least 5 months in seeds buried in soil. Several important nematode species can infest common chickweed.

IMPORTANCE: The weed is an important constituent in the diet of many farmland birds. It has medicinal and therapeutic uses, is rich in vitamin C and may be eaten as a salad vegetable. It can accumulate nitrate nd may become toxic to stock. In addition, it has a relatively high oxalic acid content and a low level of calcium that may have an adverse effect on dietary calcium bioavailability.

MEDICINAL PROPERTY: 
Medicinally, chickweed is tonic, diuretic, demulcent, expectorant, and mildly laxative. It's often recommended for asthma, bronchitis, or congestion. It's also said to help control obesity and is an ingredient in some herbal weight loss preparations. Externally, chickweed relieves itching and inflammation and is generally soothing and moisturizing. It can be used for any minor skin infections or irritations, and is an ingredient in a number of commercial skin care products. As far as I've been able to discover, this common plant has yet to be thoroughly scientifically studied.

However, the benefits ascribed to chickweed may simply be the result of its high nutritional value, especially the presence of gamma-linolenic acid (GLA). The medicinal effects of this fatty acid read much like the values ascribed to chickweed. GLA is recommended for a variety of skin problems, for hormone imbalances as in PMS, and for arthritis. It clears congestion, controls obesity, reduces inflammation, reduces water retention, acts as tonic for the liver, and reduces the negative effects of alcohol abuse.

Chickens and many other birds love chickweed, and eat both the plants and the seeds, which is how it gets its name. If you keep birds as pets, you can feed it to them too.

Chickweed is also one of the primary targets of various broad-leaf herbicides, but as I feel rather strongly about contributing poisons to the ecosystem, I would recommend weeding instead for those people who can't learn to like this useful little plant.

USED AS A FOOD:
 It has a mild, refreshing flavor. The leaves and stems can be added to salads, cooked as greens, or added to anything you might add greens to (which, to me, is just about everything).Chickweed is particularly high in ascorbic acid (vitamin C) and mucilage, and also provides rutin, para amino benzoic acid (PABA), gamma linolenic acid (GLA, an omega-6 fatty acid derivative), niacin, riboflavin (B2), thiamin (B1), beta carotene (A), magnesium, iron, calcium, potassium, zinc, phosphorus, manganese, sodium, selenium, and silicon. The seeds are also edible. The plant can be dried for storage. Chickweed is a fairly safe food, however, as almost everything is somehow toxic if you use enough of it, over-consumption of this plant may give you diarrhea.

BIOLOGY: Common chickweed flowers and sets seed all through the year. It has been known to flower and ripen seed under a snow-cover 10-20 cm deep. Flowers are normally self-pollinated but there is a short period when insects can effect cross-pollination. In winter, flowers are produced that do not open making self-pollination inevitable. Stems cut off in flower do not produce viable seed but any green immature capsules present will ripen and the seeds within them can become capable of germination. Individual seed capsules contain around 10 seeds and the average seed number per plant is 2,200 to 2,700. However, plants with 25,000 seeds have been recorded. There is a good correlation between seed number and plant dry weight. Common chickweed can complete its life cycle in 5-6 weeks.

Seeds will germinate at any time of year but particularly in spring and autumn. Germination can occur between 2°C and 30°C but the optimum temperature is 15°C. Seed collected from separate plant populations may differ in size and germination characteristics. Some seeds can germinate immediately after shedding. Buried seeds develop a light requirement for germination. In the field, seedling emergence declines with increasing depth of seed burial. Most seedlings emerge from the surface 30 mm of soil. Seedlings from seeds buried deeper in the soil take longer to emerge. Chickweed is able to grow at relatively low temperatures and seedlings can survive all but the severest frosts.

PERSISTENCE AND SEEDS : Buried seeds are known to retain viability for at least 25 and probably over 40 years. Seed buried in soil for 10 years gave up to 22% germination. Seeds in dry storage for 30 months at low temperatures retained full viability. Common chickweed seeds broadcast onto the surface of clay and silty-loam soils, ploughed to 20 cm or flexible tine cultivated to 10-15 cm and followed over a 6 year period of cropping with winter or spring wheat declined at an annual rate of 35%. The estimated time to 95% decline was 7-8 years depending on the frequency of cultivation. In a series of autumn-sown crops the time to 99% decline of seed in the soil seedbank was 11.1 years. The mean annual decline rate was 30%. In other studies in cultivated soil the annual percent decline was 41%. Elsewhere, under a grass sward, common chickweed seed had a mean annual decline rate of 26%.

The seed capsule splits when mature and the seeds are shaken out onto the soil beneath the parent plant. The seed is dispersed further in mud on footwear and tyres. Ants also carry seeds away. Common chickweed seed was a common contaminant in cereal, grass, clover and other crop seeds. It remains a problem in home-saved cereal seed.

Chaffinches eat common chickweed seeds readily. A small number of seeds survive passage through the digestive system of small birds and germinate in their droppings. Seeds are also found in cattle, deer, horse and pig droppings and in worm cast soil. Apparently-viable seeds have been found in cattle manure. Ants can also transport seed. Seed has been recovered from irrigation water. The seed can withstand submergence in seawater.
chickweed in cereal

MANAGEMENT: 
In cool wet conditions common chickweed forms a dense mat of spreading stems that may root at the nodes making it difficult to hoe or pull up. Hoed plants will root again in moist soil. Complete burial is the most effective treatment. In root crops, control is by repeated surface tillage in hot, dry weather. In cereals, increasing the sowing rate and reducing the row width help to suppress chickweed growth. Spring-tine harrowing in July is said to give good control of the weed. After cereal harvest, stubble cultivations give good control of freshly shed seed. The soil should be worked to a depth of 5 cm at 14-day intervals. Common chickweed often emerges in winter when ploughing will destroy it.

Mowing is not effective with this procumbent plant and may help the weed by removing the shading effect of taller species. On newly sown leys grazing by sheep may to help to suppress common chickweed. It is grazed by many wild and domestic animals. Geese are said to eat common chickweed selectively in certain crops.

A layer of compost or cover crop residue spread over the soil will reduce common chickweed emergence. Leachate from composted household waste inhibits seed germination. There are indications that shallowly incorporating chopped straw after cereal harvest reduces seedling emergence. This may be due to the release of toxins as the straw decomposes. Seedling numbers increase, however, following applications of organic manure.

Seed numbers in soil were reduced by 85% following a 1 year fallow and by almost 90% if this was extended to 2 years. The land was ploughed, disked and harrowed during each fallow each year. Weed numbers were reduced but to a lesser extent by cropping with winter wheat for the same period and carrying out normal control measures. Fallowing at 5-year intervals over a 15-year period did not reduce seed numbers in soil further because during the intervening cropped years the weed was able to ripen seed during cropping, after harvest and before ploughing took place. Seed that remained dormant in the soil during the fallow period allowed the weed to survive through to the next crop year and increase again. Even a 4-year fallow did not eliminate all the common chickweed seeds in the soil.

Common chickweed seedlings with 2-6 leaves are relatively susceptible to flame weeding and the seeds are killed by soil solarization. Seedlings are very sensitive to UV-B radiation.

The seeds of common chickweed are consumed by several species of ground beetle. The fungus Peronospora media may be an important agent in the natural control of common chickweed.


SOURCES:
(1) http://www.gardenorganic.org.uk/organicweeds/weed_information/weed.php?id=16

(2) http://www.kingdomplantae.net/chickweed.php

(3) http://www.arkive.org/common-chickweed/stellaria-media/
Posted by Rahul Sharma Posted on 03:55 | No comments

Euphorbia thymifolia Burm. f. (chhoti duddhi)

Euphorbia thymifolia Burm. f.

CHHOTI DUDDHI : A rare and neglected wild medicinal herb !!

COMMON NAME:
chhoti duddhi, Shwet kerui, Dudhiya, Swetkan, Chothadudhi, Duddhi, Nigachun, Makikitot

BOTANICAL NAME:
Euphorbia thymifolia Burm. f.

FAMILY: Euphorbiaceae

DESCRIPTION: Chhoti Duddhi, as the name indicates is a small plant containing milky latex in it. I know it from my childhood because some of my caring elders used to apply a paste of this plant whenever anyone of us got wounded while chasing and running behind one another during our routine games and sports in the village. As time passed, I grew older and older but could not forget this small plant peculiar in appearance but inhabiting in such ways that it can easily escape out of your notice if you are not a keen observer. Whenever and where ever I went and walked, in a not so happy mood, not in a hurry to rush for reaching to my destination, looking on the earth passing through my left or right sides, I located this humble plant with all its small expansion, sleeping on the surface without any ambition of life, never looking up towards the egoistic world, never wretched to feel about its smallness, rather shy enough in showing its existence, living under tough conditions offering refuge to lots of dust particles and bits of light weights. My writing about the humble plant is just a tribute to it as it occupies its place in my mind like anything else for the whole of my life, not like a thing of some use to me but like someone of the God’s creation occupying a place in the field of love of my mind I just cannot explain about.

Chhoti Duddhi in Ayurveda is called as Laghu Dugdhikaa. In Sidha it is called as Ammanpthrishi. It is taxonomically known as Euphorbia thymifolia Linn. , belonging to the family Euphorbiaceae. It has different names in different regions like – Dudia and Shweetkerua in Bengal, Cgittirapalavi in Ceylon; Nahani dudheli in Gujrat; Ghakdidudhi and Chothadudhi in Maharashtra; Chickenweed, dwarf spruce, and red caustic creeper in English. In Sanskrit it is known as Lakhu dugdhi, Dugdhika, and Raktabinducchada. In Spenish it is called as Golondrina and in Unani it is called as Dudhi khurda.

HABITAT : Euphorbia thymifolia is an annual herb with pan-tropic distribution. This is mainly found in waste lands, along roadsides and wall sides under humid conditions.

STEM: Its stem is slender, smooth, and reddish in colour and profusely branched. The stem is 10 to 20 cm in length with a diameter from 1 to 3 mm.

ROOTS: Delicate adventitious roots come out from nodes. Roots are fibrous, thin and delicate.

LEAF: Leaves are opposite, elliptic, oblong or ovate, 4 to 8 mm long and 2 to 5 mm wide with rounded apex, oblique base, inequillateral, margins serulate, stipules lanceolate or linear, and 1 to 1.5 mm long, deciduous.

FLOWER: Flowering occurs from June to November. Inflorescence is solitary or severely clustered at axils of leaves; peduncles are 1 to 2 mm in length and sparsely pilos. Involucres are slightly exceeding, and ovaries have short stipes. Involucres axillary, solitary or 2-3 in an axil, campanulate, 0.8 mm long. Capsule minute, hairy.

FRUIT: Fruits are cocci when mature

SEEDS: seeds are long, ovoid and tetragonal.

CONSTITUENTS:
Contains quercetin, a crystalline alkaloidal principle and Studies revealed phenolics, tannins, flavonoids, steroids.

MEDICINAL PROPERTIES:

(1) According to Charak the soup of Dugdhika is beneficial in diarrhea and painful bleeding of piles. He has prescribed its latex for ring worm and for eruptive boils. In the traditional medicinal practice of konkan people also, the extract of this plant is applied for the cure of ringworms.
(2) Bhaavaprakash states that Dugdhika is expectorant as it can cure aggravated cough. Besides this a paste of the plant cures skin diseases and parasitic infections. If used internally, its extract promotes conception. It is aphrodisiac and possesses age sustaining properties.
(3) In Tamil traditional Medicinal practices the leaves and seeds of this plant are given in cases of worms and certain bowel affections of children.
(4) In North- Indian traditional practice the extract of plant is considered to be stimulant and laxative.
(5) The Santal tribals of Jharkhand and other regions use the extract of its roots as remedy for treating amenorrhoea (the absence of a period in a woman of reproductive age).
(6) The extract or the powder of this plant mixed in alcohol is used as a remedy for snakebites.
(7) It has been reported that the extract of Euphorbia thymifolia is antiviral and anti oxidant. It has also been reported to act as diuretic, laxative, detumiscent, anti-diarrheic, anti-malarial, anti-rash, anti-dysentery, anti-carbuncle, detoxificant, and anti-hemorrhoidal.
 (8)
It has been reported that the extract of this plant when combined with 1.5% HCl can inhibit the growth of both the Gram positive (Bacillus subtilis) and Gram negative bacteria (E.coli).
(9) It has also been reported that the aqueous extract of E. thymifolia possessive laxative properties.

USEFUL INFORMATION: The fresh plant is considered vulnerary and galactagogue; used in ophthalmia and other eye troubles, ardor, sores, atrophy, dysentery and Brest pain. It is an effective drug for bronchial asthma. Juice of the plant is used for ringworm, diarrhoea and dysentery; mixed with fresh goat milk is given to cure blood dysentery. Leaves and seeds are astringent, stimulant, anthelmintic and laxative; given to children in bowel complaints. Root is used in amenorrhoea (Yusuf et al. 2009).

SOURCES:
(1)http://sphinxsai.com/PTVOL3/PT=44,SANDEEP%20KANE%20(666-669).pdf
(2) http://www.stuartxchange.com/Makikitot.html

(3)http://www.globinmed.com/index.php?option=com_content&view=article&id=83442%3Aeuphorbia-thymifolia&Itemid=150

(4) http://www.mpbd.info/plants/euphorbia-thymifolia.php

(5) http://www.ecosensorium.org/2009/08/chhoti-duddhi-euphorbia-thymifolia-linn.html

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