Tropical ulcer is seen throughout the tropics and subtropics. "Gossypium" species are distributed in arid to semiarid regions of the tropics and subtropics. The locations with highest annual solar irradiance lie in the arid tropics and subtropics. Whistling ducks are found in the tropics and subtropics. It is native to the tropics, subtropics and temperate zones of the Afrotropics. Areas with wet seasons are dispersed across portions of the tropics and subtropics. Areas with wet seasons are disseminated across portions of the tropics and subtropics. Leishmania parasites spread by phlebotomine sand flies in the tropics, subtropics, and southern Europe. It is widely grown as an ornamental plant throughout the tropics and subtropics. Gleysols in the tropics and subtropics are widely planted with rice. "Monstera deliciosa" is commonly grown outdoors as an ornamental plant in the tropics and subtropics. The Combretaceae are widespread in the subtropics and tropics. It is widely grown as an ornamental plant in the tropics and subtropics. Cambisols are less common in the tropics and subtropics. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics.