Prairie

Prairie [ Ecology - Biogeography ]

Dictionary of botanic terminology - index of names


	A prairie is a relatively flat or gently hilly region in which predominate native grasses and small herbaceous plants with only rare shrubs, and nearly treeless.

It is specifically found in the large plain tract of central North America. Its mesic (moderate or temperate) climate, with light summer precipitations and high summer temperatures is highly favourable for the growth of grass, but there is a considerable risk of drought especially in certain portions, where a semi-arid climate (steppe climate) prevails. Fire is an important part of prairie ecosystem. Grazing by animals also helps to maintain the prairie ecology. The North American prairie is similar, but not completely analogous, to the steppe regions of Europe and Asia and to the Pampas of Argentina.

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