One way in which plants spread their seeds, ready to grow a new plant at a distance from the parent is by exploding the seed pod. Watch the “touch-me-not” seed pods exploding here.
An illustrated talk by an academic, showing three different kinds of seed dispersal – wind, animal and fire.
Watch the seed pods of Himalayan Balsam explode and send seeds travelling at 95Km/hr for a distance of up to 6 metres.