Interesting and Unbelievable Facts

There are more than  300,000 species  of plants on earth. Around 90% of them are flowering plants. The  three most abundant members  of plant families are the sunflower family (24,000 species), the orchid family (20,000 species), and the legume family (18,000 species). These three families comprise around   25% of all the flowering plant species  on earth.  Plants can survive  low-level radiation . Few plants survived and grew near Chernobyl ( Ukraine ) after the nuclear disaster in 1986, thanks to the adoption of necessary changes in their inner structure. ( Source ) About 80,000 plant species are edible . But currently, only 150 species are cultivated for human and animal food. ( Source ) Tropical rainforests cover 7% of the earth’s land mass but contain nearly 50% of all known plant species. Plants in these forests are the source of 120 prescription drugs for diseases such as cancer, leukemia, heart problems, malaria, gl...