Plants cannot move, so they have developed strategies for dispersing
their offspring away from the parent plant. Weeds are particularly good
at this, and are often among the first to occupy disturbed sites. Seeds,
and other plant propagules, can be dispersed by wind, water and animals.
Seeds can be dispersed in four ways:
1. Wind dispersal,
3.Water dispersal, and
4.Explosions mean some plants disperse their own seeds. The pods dry
and split open suddenly with some considerable force which throws
their seeds for some distance.
hope its help u