Some Aquatic plants

Aquatic plants

                 Plants which grow in water either partly or wholly submerged are called hydrophytes or aquatic plants. These plants may live in fresh water or sea water.

1. Planktons

        Planktons are aquatic, free floating microscope organisms. Those which contain chlorophyll are called phytoplanktons. They can prepare their own food eg. Diatoms, Wolffia, Lemna, Pistia, Eichhornia and Azolla.

2. Benthos

           Plants which grow int the shallow regions where they can get adequate supply of light are called Benthos. Some plants are completely submerged in water. They possess long stem and small leaves at the nodes. e.g. Hydrilla, Ceratophyllum.

             Some plants have tuberous stem. The leaves are him and ribbon shaped eg. vallisneria. 

                But few submerged plants are rooted in muddy soil of ponds, rivers and lakes. Their leaves and flowering shoots float above the surface of water eg. Water lily ( Nymphaea ), Lotus ( Nelumbium)

                   These green plants prepare the food material with the help of sunlight. The stored food is utilized by the animals. The oxygen evolved by the producers during photosynthesis is also utilized by all the living organisms for resipration