Rheophytes tend to be found in currents that move at rates of 1 to 2 meters per second and that are up to 3 to 6 feet deep. The amount of force produced by these currents, and the damaging debris they can carry, makes this environment inhospitable to most plants. Rheophytes are able to live in such environments because their leaves are streamlined so as put up little resistance to the flow of water.