The reserve houses a tropical dry forest ecosystem, within the reserve the flora consists of over 500 species of plants and tropical dry trees, such as pochote, black rosewood, mahogany, hogplum and guacuco, as well as a large variety and amount of orchids.
Among the dry forest specimens found we can mention the "Pochote" (Bombacopsis quinata), the "Guacimo" (Guazuma ulmifolia), and the "Indio Desnudo" (Bursera simaruba) but there are many other trees present that are native to the whole Nicoya Peninsula area.