Insect pollinated flowers | Wind pollinated flowers | Water pollinated flowers |
Pollen grains are sticky, and stamens are usually placed deep inside the flower (do not hang out loosely). | Pollen grains are light and non-sticky. Stamens are well exposed | Pollen grains are released inside water, they are long, ribbon-like, having a mucilaginous covering. |
Flowers are showy, fragrant, colourful and produce nectar. | Flowers not very colourful and don't produce nectar. | Flowers not very colourful and don't produce nectar. |
Stigma is also deep seated. | Stigma is feathery | Female flowers have long stalk and reach surface of water to capture pollen grains. |
Eg. Sunflower, rose etc. | Eg- In grasses | Eg. Vallisneria, Hydrilla |