Exotic flora of some grasslands of Nilgiris with their medicinal uses
نویسندگان
چکیده
In addition to the dominance of indigenous plant species, the grasslands of Nilgiris harbour a considerable number of exotic plants with sizeable number of individuals. In the present study in four major grasslands of Nilgiris, out of 12 exotic species present, 10 are recognized as medicinally important. The family, Asteraceae contributed a higher number of 6 medicinal species to the grassland community. The density of exotics in the studied grasslands is varied between 4 and 66/ha. In order to conserve the native species, the frequent harvesting of useful parts of exotics is suggested. In addition cultivation of these exotics in the degraded grasslands and other suitable habitats in Nilgiris may also reduce the pressure upon the native species and at the same time it will also meet the demand.
منابع مشابه
Weed abundance is positively correlated with native plant diversity in grasslands of southern Australia
Weeds are commonly considered a threat to biodiversity, yet interactions between native and exotic species in grasslands are poorly understood and reported results vary depending on the spatial scale of study, the factors controlled for and the response variables analysed. We tested whether weed presence and abundance is related to declines in biodiversity in Australian grasslands. We employed ...
متن کاملSurvey on Medicinal Spices of the Nilgiris
A survey is made on the medicinal spices of the Nilgiris. Totally, there are 25 species available in various parts of the Nilgiris and they belong to 16 different families of angiosperms. Gudalur, Kothagiri, Kookalthorai, Aruvankadu, Coonoor, Burliar, Masinagudi and Ootacamund are some of the important places in the Nilgiris have a variety of medicinal properties that are put to use in homoeopa...
متن کاملPopulation structure of Scotch broom (Cytisus scoparius) and its invasion impacts on the resident plant community in the grasslands of Nilgiris, India
We investigated age and size class structures of Scotch broom stands, and the effects of invasion on the native plant community, in the high-altitude grasslands of the Nilgiris, South India. Girth, height and age of broom stems were recorded. Native vegetation cover was assessed under broom and in the surrounding grasslands. Age was positively correlated with girth and height of broom. Middle-a...
متن کاملInvasion, competitive dominance, and resource use by exotic and native California grassland species.
The dynamics of invasive species may depend on their abilities to compete for resources and exploit disturbances relative to the abilities of native species. We test this hypothesis and explore its implications for the restoration of native ecosystems in one of the most dramatic ecological invasions worldwide, the replacement of native perennial grasses by exotic annual grasses and forbs in 9.2...
متن کاملPhytochemical studies of some Iranien medicinal plants
The Flora of Iran is very rich due to the diverse climatic and soil conditions in mdifferent ecological regions. Iran has around 10000 species of wild plant of which about 850 are considered being medicinally important. In the present work the phytochemistry of several Iranian medicinal plants and their possible usage will be discussed.
متن کامل