Brazil Tours / Diversity - Alluvial vegetation (floresta ombrófila / estacional aluvial) occurs azonal (height - independent) along rivers and streams such as temporarly or
permanently flooded freshwater areas (várzea) of the
pioneer formation
(e.g. Caxetal) and
tropical /
seasonal
rainforest
ecosystems.
It is often referred to as "riparian" or "gallery" rainforest.