The stigma is the sticky knob at the top of the pistil. It is attached to the long, tubelike structure called the style. The style leads to the ovary that contains the female egg cells called ovules. The male parts are called stamens and usually surround the pistil.
The stamens are very different structures from the stigma. The stamen are very thin tubelike structures with little balls on the top of each, and there might be quite a few on a single flower. The stigma is the sticky top on the pistil, which is a vase-like structure which contains the ovaries. A plant only has one pistil, and it is usually hidden from immediate view.
