SCIENTISTS at the Birbal Sahni Institute of Palaeobotany in Lucknow and the Indian Institute of Tropical Botany in Pune have found growth rings of tropical trees such as teak (Tectona grandis) and

In order to propagate its own species, a parasitic fungus attacks mustard plants and transforms their leaves, making them look like flowers of other species.

Plants normally have only bisexual flowers. Some species, however, also produce male flowers to make the dispersal of pollen more efficient.

Evidence suggests plants have a nervous system that enables them to respond to touch.