Definition: An area of a planet's surface which is primarily covered by a forest in which the majority of trees maintain their foliage despite seasonal change.
Definition: Amazonian forest where the soil remains either wet or flooded for most of the year, often associated to sandy soils. When compared to Terra Firme and Várzea Inundated Forests it is generally the less tall of them.
Definition: Forest associated to intermittent water courses, which can be wide (riverine) or narrower and with the canopy meeting over the river (gallery)
