During pollination, pollen grains are received by the

The stigma is the upper part of the pistil (carpel) that is specifically adapted to receive and trap pollen grains during pollination. It is often sticky or hairy to effectively capture pollen, and its surface chemistry allows compatible pollen grains to germinate and grow pollen tubes toward the ovary. The anther produces pollen (male part), while the style and ovary are involved in pollen tube growth and ovule reception, not the initial pollen capture.