Wind pollinated Flowers-communication

These flowers are often small and inconspicuous since they do not need to attract insects. They do not produce nectar and they do not have any scent. Most trees and grasses have wind-pollinated flowers.

In general, wind-pollinated flowers are green, small, and often lack petals. The anthers and stigmas generally hang outside the flowers to allow the wind to carry the pollen.

http://www.cas.vanderbilt.edu/bioimages/pages/pollination.htm

http://www.saburchill.com/chapters/chap0044.html

more research will be done...