Wind pollinated flowers :
Pollen grains are light and non-sticky so that they can be transported in wind currents.They possess well-exposed stamens so that the pollen's are easily dispersed into wind currents and large feathery stigma to easily trap air-borne pollen grains.Wind pollinated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence.
Insect pollinated flowers :
The flowers are large, colorful,fragrant and rich in nectar. When the flowers are small a number of flowers are clustered into an inflorescence.The flowers pollinated by flies odours to attract these animals.