Classification of Plants

Heliophytes - a plant that grows best in full sunlight

hydrophyte - a plant which grows only in or on water.

Xerophyte - a species of plant that has adapted to survive in an environment with little liquid water, such as a desert.

Tropophytes - a plant that inhabits regions marked by the regular alternation of rainy and dry seasons.

Halophyte - a plant that grows in waters of high salinity.

Mesophyte -  a plant needing only a moderate amount of water.

Epiphyte - a plant that grows harmlessly upon another plant (such as a tree) and derives its moisture and nutrients from the air, rain, and sometimes from debris accumulating around it.

Phototropism - the orientation of a plant in response to light.

Geotropism - the growth of the parts of plants in response to the force of gravity.

Chemotropism -  the growth or movement of a plant or plant part in response to a chemical stimulus.

Seismotropism - an orientation response to mechanical vibration or a shock stimulus.