Lowland evergreen seasonal and deciduous geocomplex. 1. Tropical lowland saxicolous outcrop vegetation: Notocactus, Frailea, Dyckia, Tillandsia communities. Precambric rock outcrops. 2. Seasonally dry deciduous woodland: Tabebuia pulcherrima-Protium heptaphyllum community. Excesively well-drained stony leptosols. 3. Evergreen seasonal forest: Tabebuia impetiginosa-Anadenanthera colubrina community. Well-drained deep sandy-stony soils. 4. Evergreen Atlantic forest: Piptadenia rigida-Balfourodendron riedelianum community, with Peltophorum dubium, Apuleia leiocarpa, Cedrela fissilis. Zonal deep soils. 5. Flooded Forest: Nectandra angustifolia-Luehea divaricata community. Seasonally flooded alluvial plain. 6. Flooded riparian forest: Guadua angustifolia-Copaifera langsdorfii community. Riverine banks and alluvial plain. Lotic. Graphic geobotanical interpretation based on cited references, our own field data (Asunción-Caaguazú transect) and Google Earth images.