The Subchaquenian vegetation of the province of Santa Fe (Argentina)
D'Angelo, C.; Prado, D.E.; Stofella, S. L.; Lewis, J. P.
This paper is a first approximation to the description of the Subchaquenian vegetation of Santa Fe, Argentina. On the northeast of the region studied there are forests of chaquenian species, but floristically poorer than the Chaco ones, which alternate with river valleys covered by halophilous vegetation. On its centre, a depressed area, there are mainly Leptochloa chloridiformis savannas and Spartina argentinensis grasslands with islets of Geoffroea decorticans; also there are forests of this latter species. Its north is a swampy area covered by Spartina argentinensis grasslands, which continue further north through the "Submeridional Lowlands" of the Santafesinian Chaco. Hypothetically the far west of the region was covered by forests and woodlands, but agriculture has changed completely the vegetation of that zone. As a whole, the region is a transitional zone between the Chaco and the Pampa.