BOTANY

Detailed explanation-1: -Stigma is the topmost surface of the pistil that receives pollen grains. Wind-pollinated flowers have a large, feathery stigma in order to trap the airborne pollen grains.

Detailed explanation-2: -The top of the pistil is called the stigma, which is a sticky surface receptive to pollen.

Detailed explanation-3: -The stigma is the sticky surface at the top of the pistil; it traps and holds the pollen.

Detailed explanation-4: -The stigma is a specially adapted portion of the pistil modified for the reception of pollen. It may be feathery and branched or elongated, as in such wind-pollinated flowers as those of the grasses, or it may be compact and have a sticky surface. The ovary…

Detailed explanation-5: -In all wind-pollinated flowers, the mature stigma is found rough and sticky.