Argentina, The Pampas

The principal Pampas vegetation is monte forest in the Dry Pampa and grassland in the Humid Pampa. The boundary between the Dry and Humid Pampas lies approximately along longitude 64° W. Knee-high grasses are found in the most humid areas, whereas to the north, west, and south, where precipitation decreases, tougher grasses give way to the monte of the Dry Pampa. Planted