Temperate grasslands occur in temperate plains: the veldts of South Africa, the puszta of Hungary, the pampas of Argentina and Uruguay, the steppes of Russia, and the plains and prairies of central North America. Precipitation is moderate (30 - 100 cm per year) but highly with seasonal: relatively cold, dry winters and hot, wet summers with periodic droughts. Grasses and forbs dominate the landscape and are adapted to the periodic droughts and fires and prevent establishment of woody shrubs and trees.