The function of the anther is to produce and bear the pollen of the flower. This structure sits atop a structure called a filament, and together these two structure constitute the flower's stamen. This is one of a typical flower's two main sexual organs, the other being the pistil, which contains the plant's ovaries.
The anthers contain microsporangia, tiny sacs in which pollen is formed. After its formation, the pollen rests on the anther, from which it is carried by wind or the actions of various insects, such as bees. Some plant species produce unisexual flowers. In these species, each flower has only a stamen or a pistil, but not both.