The term 'bulrush' is used to refer to a variety of aquatic plants, including tule (4 letters), REED (4 letters), CATTAIL (7 letters), and SEDGE (5 letters). Tule is a tall grass-like plant that grows in shallow water, while REED is a tall, slender grass-like plant with hollow stems. CATTAIL is a tall, cylindrical plant with a brown spike at the top, and SEDGE is a grass-like plant with triangular stems. All of these plants are commonly found in wetlands and other areas with standing water.