Temperate grasslands, savannas, and shrublands are terrestrial biomes defined by the World Wide Fund for Nature.
Heaths and pastures are, respectively, low shrublands and grasslands where forest growth is hindered by human activity but not the climate.
Tall grasslands, including the tallgrass prairie of North America, the north-western parts of Eurasian steppe (Ukraine and south of Russia), and the Humid Pampas of Argentina, have moderate rainfall and rich soils which make them ideally suited to agriculture, and tall grassland ecoregions include some of the most productive grain-growing regions in the world.
[1][2] Temperate savannahs, found in Southern South America, parts of West Asia, South Africa and southern Australia, and parts of the United States, are a mixed grassy woodland ecosystem defined by trees being reasonably widely spaced so that the canopy does not close, much like subtropical and tropical savannahs, albeit lacking a year-round warm climate.
[4] The states of the Eurasian steppes and the North American Great Plains have been largely extirpated through conversion to agriculture.