Wind
Wind pollinated flowers are characteristically small, green and with little scent and no nectar. They are often borne in long catkins.
Alternatively they may have their anthers on long slender stalks so they are readily shaken by the wind.
Wind pollination is often most effective in plants that are normally gregarious e.g. grasses in grassland. The number of insects required to carry pollen from one plant to another would be enormous.
Matt: CORRECT
Record: 165-136
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