They inhabit the dense undergrowth of tropical forests. They inhabit forest environments, with different species preferring forest canopies, undergrowth, or mangrove swamps. The swamp wallaby finds protection from dingos in the swampy areas which have dense undergrowth. It is extremely useful for clearing undergrowth and unwanted hedgerows. It nests near the ground in dense undergrowth. The plants grow in a creeping habit in moist, dense undergrowth. They rest in trees, but also hide in dense thorny undergrowth on the ground. A large area of land covered with trees and undergrowth is called woodland or forest. Smaller ferns were probably the dominant undergrowth. They have strong legs, well-suited to their habitat of grassland or forest undergrowth. The forest begins to regrow, and a kodama emerges from the undergrowth. The tusks are used to push through the dense undergrowth of their habitat. It inhabits hilly areas close to water, particularly steep upper valleys with copious undergrowth. "Pteridophyllum" grows in the undergrowth of woods of needle-leaved trees between . Hidden by dense undergrowth for centuries it was rediscovered in 1872.