 The soils here are volcanic and shallow, but with rich organic matter.Species that predominate include Mayan breadnut (Brosimum alicastrum), sapodilla (Manilkara zapota), rosadillo (Celtis monoica), Bursera simaruba, Dendropanax arboreus, and Sideroxylon capiri.This ecoregion extends into the central part of the state, with vegetation changing to include mahogany (Swietenia macrophylla), sapodilla (Manilkara zapota), Bernoullia flammea, and Astronium graveolens.