Stigma
The tip of the pistil, often sticky or feathery, where pollen lands and begins to grow.
The stigma is the landing place for pollen. It is often sticky, so grains hold fast, or feathery, as in grasses, to comb pollen from the wind. Only pollen of the right kind will grow there. A lily stigma is a moist three-part knob. A hibiscus has five velvety pads. The most valuable stigmas in the world belong to the saffron crocus: each flower has three long red ones, and these are picked by hand and dried to make the spice.