Bamboos grow everywhere along the outer ranges, and rattans to the eastward, and are largely exported for use in the plains.
The arboreous forms which least require the humid and equable heat of the more truly tropical and equatorial climates, and are best able to resist the high temperatures and excessive drought of the northern Indian hot months from April to June, are certain Leguminosae, Bauhinia, Acacia, Butea and Dalbergia, Bombax, Shorea, Nauclea, Lagerstroemia, and Bignonia, a few bamboos and palms, with others which extend far beyond the tropic, and give a tropical aspect to the forest to the extreme northern border of the Indian plain.
TROPICAL REGI0N.This is characterized by the presence of gigantic Monocotyledons, palms, Musaceae and bamboos, and of evergreen polypetalous trees and figs.
In the eastern forests palms, bamboos, lianas and tree-ferns, as well as species of Dracaena, are found.
In the Spanish plains, however, the young are often produced in nests built in trees, or among tall bamboos in FIG.