Comprised of Eucalypt, Acacia and other forests and woodlands. Classified into two types: dry where the trees and understorey plants mostly have tough leaves adapted to drought and low-nutrient soils; wet are intermediate between typical sclerophyll forests and rainforests: They are dominated by tall eucalypts containing the tallest flowering plants on earth but with an understorey of ferns (including tree-ferns) and other rainforest elements.