Nothofagus, also known as the
southern beeches, is a genus of 36
species of
trees and
shrubs native to the
Southern Hemisphere in southern
South America (
Chile,
Argentina) and
Australasia (east and southeast
Australia,
New Zealand,
New Guinea and
New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalized in
Germany and
Great Britain. The genus has a rich fossil record of leaves, cupules and pollen, with fossils extending into the late Cretaceous and occurring in Australia, New Zealand, Antarctica and South America. In the past, they were included in the family
Fagaceae, but genetic tests revealed them to be genetically distinct, and they are now included in their own family, the Nothofagaceae (literally meaning "false beeches" or "bastard beeches").