Instead, since wind is an inconsistent pollinator, they use their reproduction budget to produce more flowers, with exposed stigmas and anthers loaded with pollen. The grass flower shown below is actually a very advanced design which minimizes any extraneous tissue and maximizes the probability of pollen interception and dispersal. It is placed high above the blades on thin stems which shake in the wind. When mature, the stigmas a large and feathery. The one on the left is just emerging.
Wind pollination is most efficient where there are dense populations of the same species.
Grasses form large perennial populations which allow this strategy to work. Orchids, unlike the grasses above, are rare. The orchid is a very advanced design, with fusion of petal parts and the production of specialized male anthers. This prevents self pollination of the orchid, increases the probability that a visitor will come to this widely dispersed plant, and if only one arrives, that it contains enough pollen for reproduction to continue on. Morris, B.A.M. Parthenocarpic apple fruit production conferred by transposon insertion mutations in a MADS-box transcription factor.