Halophytes:

Halophytes live in the sea waters and are adapted to salty environments.Salts enter in the bodies of such plants due to their higher concentration in sea water. On the other hand, water tends to move out of their cells into the hyper tonic  sea water. when Salts enter into cells, plant carry out of salt in vacuoles. Salts inacuolles.salts are not allowed to move out through the move

hyper tonic than sea water.In this way,water does not move out of cells.Many sea grasses are included in this group of plants.