subtropical

Of, relating to, or being the geographic areas adjacent to the tropics.

Of a climate or other physical character between tropical and temperate; approaching the tropical or torrid zone in temperature: noting a region on the confines of either tropic, or its plants, animals, and other natural productions: as, subtropical America; a subtropical fauna or flora.

Nearly tropical.

Pertaining to the regions of the Earth further from the equator than the tropical regions.

A subtropical plant.

of or relating to or characteristic of conditions in the subtropics