The Flower

A flower is a plant's reproductive organ that can be described in many ways, including: Structure Flowers have a floral axis that contains the reproductive organs, and accessory organs like petals and sepals. Flower parts are usually arranged in whorls, but can also be arranged spirally. Parts The pistil and stamen are the male and female reproductive organs of a flower. The stigma is the swollen part of the pistil that receives pollen, the style is the tube that connects the ovary and stigma, and the ovary is where ovules are located and seeds form. Color, shape, and size Flowers come in many different colors, shapes, and sizes. For example, roses can range in size from 1.25 cm to over 17.5 cm in diameter. Pollination Flowers are pollinated by insects or wind, which allows the male and female gametes to fuse and form a zygote.