This BioProvince (as defined by Armen Takhtajan) comprises the Paraná region of southern Brazil, which is associated with the catchment zone of the Parana River. It also extends into the northeastern tip of Argentina and eastern Paraquay. The geology is complex and varied, but the Paraná Basin is considered to be the largest area of flood-basalt in the World. It also host to the largest waterfall in the world (Iguaçu Falls). The climate is subtropical with hot summers and warm winters and rainfall is evenly distributed. The flora includes several endemic genera and a considerable number of endemic species including Aracaria angustifolia (Paraná Pine), which is closely related to the Chilean Aracaria araucara. The vegetation is characterised by Araucaria and deciduous subtropical forest and tall grasslands. However, the vegetation, particularly the forests could be regarded as interior components of the Atlantic BioProvince.
The following accounts for this BioProvince have been written or will be written with particular reference to endemic and locally important species. Accounts available are displayed in green or yellow. Those displayed in red are either in the pipeline or awaiting expert contributions.
|Vascular Plant Flora|