Lomas Barbudal is at its most spectacular in March when the yellow cortez trees (Tabebuia ochracea) are totally covered with yellow flowers. Rivers with permanent waters like the Cabuyo, in which there are excellent pools for swimming, cross this reserve.
In Lomas there are seven different habitats. In the deciduous forest that occupies 70% of the reserve, it is common to find endangered species like mahogany (Swietenia macrophylla), the swamp kaway (Platymiscium parviflorum) and rosewood (Dalbergia retusa). The riverside woodland that forms a fringe along the rivers and streams is evergreen and considered the densest and most divers in the area, and is especially rich in solitary wasps. The savannah, covered in grassland, is dotted with trees, including some of the biggest shoemaker’s tree (Byrsonima crassifolia) in the country. Other habitats here are xerophytic or ectremely dry woodlands, which is very rich in cacti and land bromeliads, oak forest (Quercus oleoides) and regenerated forest.
The Lomas Barbudal area is very rich in insect species, especially bees, social and solitary wasps, moth and butterflies. It is estimated that over 230 species of bees and wasps and some 60 moths are found here. Vertebrates are also abundant; around 130 species of birds have been recorded, including the long-tailed manakin (Chiroxiphia linearis), the spectacular scarlet macaw (Ara macao), and the great curassow (Crax rubra). the most easily observable mammals are the white-nosed coati (Nasua narica), the howler monkey (alouatta palliata), white faces capuchin monkey (Cebus capucinus), and the common raccoon (Procyon lotor). There are two biological corridors connecting this reserve with Palo Verde.
Lomas Barbudal is situated in the lower parts of the River Tempisque near Palo Verde Nacional Park. The offices are located on the banks of the River Cabuyo, 18 km form Bagaces via Panamerican Highway - Pijije along roads that are party paved and partly gravel. Near the offices, next to the River Cabuyo, there is a picnic area with tables and toilets and between the offices and the river there is a visitor centre.