It is sticky so that pollen will stick to it, and so begin to fertilise the plant.
Sticky stigma is generally present in wind pollinated flowers.
Wind pollinated flowers have sticky stigma
because
because
because
stigma
stigma
The stigma catches pollen and the pollen grain germinate on the stigma. The stigma is sticky to catch and trap pollen with various hairs or flaps.
The stigma
The stigma.
Wind pollinated flowers have sticky stigma
The stigma catches pollen and the pollen grain germinate on the stigma. The stigma is sticky to catch and trap pollen with various hairs or flaps.