In South America plains are different from North to South. Plains in the north are called llanos and they are dry lands in the dry season, while during the rainy periods they are covered by very high vegetation. More in the south there are selvas, plains occupied by a thick forest. In Argentina the plain becomes flat and uniform, and it is know as pampa. The last wide plain, which occupies most of the southern area of the South American continent is Patagonia.
Australia, instead, is mainly a flat continent. The outback is an internal area made up of plains and low plateaux. However, the most fertile Australian plains are located in the central-southern area of the continent, in the big artesian basin. This area stretches for around 2 million square kilometres and its subsoil is characterized by a huge water supply that makes this land very productive.