Medicinal plants of assam pdf

Only its edible flower buds and flavorful shoots medicinal plants of assam pdf used in cooking. As a woodland plant, myoga has specific shade requirements for its growth. Dancing Crane’, ‘Silver Arrow’ and ‘White Feather’.

Matsuhisa, Nobu and Mark Edwards. This page was last edited on 2 January 2018, at 07:28. The evolution of castor and its relation to other species are currently being studied using modern genetic tools. The variability has been increased by breeders who have selected a range of cultivars for leaf and flower colours, and for oil production. In some varieties they start off dark reddish purple or bronze when young, gradually changing to a dark green, sometimes with a reddish tinge, as they mature.

The leaves of some other varieties are green practically from the start, whereas in yet others a pigment masks the green color of all the chlorophyll-bearing parts, leaves, stems and young fruit, so that they remain a dramatic purple-to-reddish-brown throughout the life of the plant. Plants with the dark leaves can be found growing next to those with green leaves, so there is most likely only a single gene controlling the production of the pigment in some varieties. The stems and the spherical, spiny seed capsules also vary in pigmentation. The fruit capsules of some varieties are more showy than the flowers. An alcoholic extract of the leaf was shown, in lab rats, to protect the liver from damage from certain poisons.

At high doses mice quickly died. A water extract of the root bark showed analgesic activity in rats. It does not mix well with petroleum products, particularly at low temperatures, but mixes better with the methanol based fuels used in glow model engines. It has been largely replaced by synthetic oils that are more stable and less toxic. Jewelry is often made of castor beans, particularly necklaces and bracelets. This castor oil plant is about four weeks old. India, today it is widespread throughout tropical regions.

In areas with a suitable climate, castor establishes itself easily where it can become an invasive plant and can often be found on wasteland. However, it can grow well outdoors in cooler climates, at least in southern England, and the leaves do not appear to suffer frost damage in sheltered spots, where it remains evergreen. It was used in Edwardian times in the parks of Toronto, Ontario, Canada. Although not cultivated there, the plant grows wild in Southern California, notably Griffith Park in Los Angeles. Hale’ was launched in the 1970s for the State of Texas, United States. Brigham’ is a variety with reduced ricin content adapted for Texas, United States.

It grows up to 1. 1990 for hand harvest and semi-arid environments. It is resistant to root rot and tolerant to fusarium wilt. It is resistant to fusarium wilt. The castor oil plant produces abundant amounts of very light pollen, which easily become airborne and can be inhaled into the lungs, triggering allergic reactions. The sap of the plant causes skin rashes.

Individuals who are allergic to the plant can also develop rashes from merely touching the leaves, flowers, or seeds. Although the lethal dose in adults is considered to be four to eight seeds, reports of actual poisoning are relatively rare. These include a burning sensation in mouth and throat, abdominal pain, purging and bloody diarrhea. Within several days there is severe dehydration, a drop in blood pressure and a decrease in urine. 5 days, however in most cases a full recovery can be made. Commercially available cold-pressed castor oil is not toxic to humans in normal doses, either internal or externally. Global castor seed production is around two million tons per year.