The Magellanic subpolar forests are a terrestrial ecoregion of southernmost South America, covering parts of southern Chile and Argentina. It is a temperate broadleaf and mixed forests ecoregion and contains the world's southernmost forests.
The Orinoco Delta Swamp Forests occur in a diverse and porous matrix of coastal vegetation types along the river delta and surrounding regions of northwestern Venezuela and northeastern Guyana. These inundated forests provide habitat to a number of endangered and endemic species.
The Orinoco wetlands ecoregion is located in northeastern Venezuela, within the northern Orinoco Delta. The ecoregion consists of several large and small patches of flooded grasslands, which occur in a habitat mosaic with swamp forests and mangroves.
The Pantanos de Centla is a tropical moist forest ecoregion in southern Mexico which includes seasonally flooded forests and wetlands in the summer. The soils of this ecoregion are some of the most productive in the country and are therefore highly desirable to local agriculture.
The Petenes mangrove ecoregion forms a coastal corridor of wetlands in excellent state of preservation. This system forms a unique biogeographical area in Mexico, of great ecological value for its large faunistic and floristic diversity, including the unique Peten mangrove.
The Santa Marta montane forests is an ecoregion in the Sierra Nevada de Santa Marta, a massif on the Caribbean coast of northern Colombia. This montane ecoregion is a characteristic moist forest; however, it rises from very different habitat of xeric scrub and dry forest that surround it.
The Semiarid Pampas ecoregion is located in the center of Argentina. The predominant vegetation consists of grasslands with some shrubs. There are few endemic plants in the ecoregion but the area has a high biodiversity.
The Serra do Mar coastal forests ecoregion covers a 1000-km long by 100-km wide strip along the Atlantic coast of southeastern Brazil. The ecoregion represents the largest continuous block of montane Atlantic forest and a remarkable center of endemism in South America.