Flowers are also specialized in shape and have an arrangement of the stamens that ensures that pollen grains are transferred to the bodies of the pollinator when it lands in search of its attractant (such as nectar, pollen, or a mate)
Anemophilous flowers use the wind to move pollen from one flower to the next, examples include the grasses, Birch trees, Ragweed and Maples
A flower is regarded as a modified stem with shortened internodes and bearing, at its nodes , structures that may be highly modified leaves .  In essence, a flower structure forms on a modified shoot or axis with an apical meristem that does not grow continuously (growth is determinate ).
Flowers may be attached to the plant in a few ways. If the flower has no stem but forms in the axil of a leaf, it is called sessile. When one flower is produced, the stem holding the flower is called a peduncle . If the peduncle ends with groups of flowers, each stem that holds a flower is called a pedicel .