savanna

n. plain covered with coarse grasses and characterized by seasonal rainfall

A savanna or savannah is a tropical or subtropical woodland ecosystem. Savannas are characterised by the trees being sufficiently small or widely spaced so that the canopy does not close. It is often believed that savannas are characterized by widely spaced, scattered trees, however in many savanna communities tree densities are higher and trees are more regularly spaced than in forest communities. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses.. Savannas are also characterised by seasonal water availability, with the majority of rainfall being confined to one season of the year. Savannas can be associated with several types of biomes. Savannas are frequently seen as a transitional zone, occurring between forest regions and desert regions.
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Noun
1. a flat grassland in tropical or subtropical regions
(synonym) savannah
(hypernym) grassland

(n.)
A tract of level land covered with the vegetable growth usually found in a damp soil and warm climate, -- as grass or reeds, -- but destitute of trees.
  

Synonyms and related words:
alkali flat, alluvial plain, basin, bottomland, bushveld, campo, champaign, champaign country, coastal plain, delta, desert, down, downs, fell, flat, flat country, flatland, flats, grass, grass veld, grassland, grazing, haugh, haughland, heath, lande, lea, level, llano, lowland, lowlands, lunar mare, mare, mead, meadow, meadow land, mesa, mesilla, moor, moorland, open country, pampa, pampas, park, pasturage, pasture, pasture land, peneplain, plain, plains, plateau, playa, prairie, range, salt flat, salt marsh, salt pan, sebkha, steppe, steppeland, swale, table, tableland, tree veld, tundra, upland, vega, veld, weald, wide-open spaces, wold