1) Warm climate 
In climatology, the term megathermal (or less commonly, macrothermal) is sometimes used as a synonym for `tropical.` In order for a particular place to qualify as having a megathermal climate, every single month out of the year must have an average temperature of 18°C or above. Megathermal climates are sometimes split into two temperature-based.....
megathermic, megathermal A reference to a plant favoring warm habitats.