This coastal strip is part of the Ethiopian xeric grasslands and shrublands ecoregion. Most of Djibouti is part of the Ethiopian xeric grasslands and shrublands ecoregion. "Toxicodendron diversilobum" is common in various habitats, from mesic riparian zones to xeric chaparral. The Hoggar Mountains are part of the West Saharan montane xeric woodlands ecoregion. The Tibesti-Jebel Uweinat montane xeric woodlands ecoregion consists of the Tibesti and Jebel Uweinat highlands. South of Fayzabad the terrain becomes dominated by deserts and xeric shrublands. It is part of the deserts and xeric shrublands biome and the Palearctic realm. Deserts are also present, showing xeric shrubland vegetation in the region. Environments subject to arid climates tend to lack vegetation and are called xeric or desertic. Xeric hammocks may develop from scrub or sandhill communities. The park is vegetated with xeric (low water use) plants, and inhabited by native wildlife. Several of these genera are adapted to xeric biomes. All six species are found in xeric habitats. This may have the greatest impact on xeric, or arid, ecosystems. The drier parts of the xeric woodland zone supports less dense oak forest and "Rosaceae".