Evergreens are plants that maintain their leaves in all seasons and include trees such as elm, pine and cedar.
Step-by-step explanation:
There are several flowering plants in the earth they are grouped into 2 major divisions, the hardwood or evergreen trees such as elm, pine and cedar. And the deciduous trees such as the seasonal trees which flower only during a particular season.
They have a needle like morphology that allows them to sustain any extreme climate. They are usually found in the extreme climate drift prone regions. They also have specialist leaf structures to formulate water loss.