plants are the very much important part of nature. It's occurrence made our life possible. In fact, it is the great source of oxygen. It preserves the nature and balances the ecosystem. There are a number of plant species. It is estimated that there are about 375,000 species of plants. These includes seed, herbs, sherbs, trees, etc. But only 297,326 species of plants have been identified. About 2,000 new plant species are discovered or described every year, many of which are already on the verge of extinction.
