There are small or no calyx and corollas on wind flowers, due to the fact that they would impede the transfer of pollen. The stamens of wind flowers are very long, and the anthers have much surface area. All of the pollen produced is very dry. The pistils are feathery and sticky, catching any pollen coming past, on the chance that it is of the same species. Usually only pollen of the same species will even germinate.
Corn is one good example of a wind flower.
The male flowers, positioned high on the stalk, are called tassels. The female flowers, or silk, is cottony and catches pollen effectively.