Wetland plants are plants that grow in areas with standing water, such as marshes, swamps, and bogs. Two common wetland plants are REED (4 letters) and SEDGE (5 letters). REED is a tall, grass-like plant with hollow stems that grows in shallow water. It is often used to make baskets and mats. SEDGE is a grass-like plant with triangular stems and sharp-edged leaves. It is often used for erosion control and to provide habitat for wildlife.