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Dry forest in Argentina

Dry Forests are found in Argentina at both the northwestern (Yungas piedmont forests) and northeastern (Misiones, Corrientes and Formosa seasonal forests) corners of the country, as the southernmost expansions of the dry forest. They are also very variable in appearance, from tall forest to low scrub in places, characterized by a few to several months period of drought, when most of the vegetation loses its leaves. They strongly differ from Chaco vegetation (frequently confused with the dry forest) in that they are less subject to frosts and grow on stony fertile soils. On the contrary, the Chaco forests are always subject to yearly frosts, grow on alkaline clayish soils, are often subject to flooding of variable duration, and their flora is radically different.The piedmont forests of NW Argentina are strongly dominated by the locally known 'cebil' (Anadenanthera colubrina var cebil); these forests extend into neighboring Bolivia as far north as Santa Cruz de la Sierra. In NE Argentina these forests have most accompanying species of the previous, but usually lack the 'cebil', except for some areas in Corrientes and Misiones provinces. For Paraguay dry forest, see recent review in the journal Rojasiana