Sri Lanka contains four terrestrial ecoregions: Sri Lanka lowland rain forests, Sri Lanka montane rain forests, Sri Lanka dry-zone dry evergreen forests, and Deccan thorn scrub forests. Flowering acacias flourish on the arid Jaffna Peninsula. Among the trees of the dry-land forests are valuable species such as satinwood, ebony, ironwood, mahogany and teak. The wet zone is a tropical evergreen forest with tall trees, broad foliage, and a dense undergrowth of vines and creepers. Subtropical evergreen forests resembling those of temperate climates flourish in the higher altitudes.