Some are salt tolerant (halophytes). Plant life is sparse but features highly specialized halophytes (salt-tolerant plants). Halophytes and xerophytes evolved to survive in such environments. Ephemerals are common in the north, halophytes in the sandy areas. In saline semidescopes often occurs on halophytes&colon; black-brown, cherry orange. Typically surrounding salient river deltas, mangrove regions support a variety of halophytes. Many species grow in dry habitats (xerophytes) or tolerate salty soils (halophytes), some are ruderals. These types of plants are called halophytes. Halophytes can be classified in many ways. Halophytes are salt-tolerant higher plants. As typical halophytes they grow in coastal salt marshes and on saline inland habitats. Plants that tolerate the extreme salt concentrations are known as halophytes. Some xerophytes may also be considered halophytes, however, halophytes are not necessarily xerophytes. These plants are known as halophytes, and have adapted to grow submerged in saltwater. Halophytes cope with this situation by activating salts in their roots.