Common reed has a large, silky inflorescence that grows at the tops of the stems. A typical inflorescence may be one to two feet long, and several inches wide. They drape to one side. W ater lettuce is a floating plant. Experts disagree as to whether water lettuce is a native or has been introduced.
Water lettuce occurs in lakes, rivers and canals, occasionally forming large dense mats.
Water lettuce has very thick leaves . The leaves are light dull green, are hairy, and are ridged. There are no leaf stalks . Water lettuce roots are light-colored and feathery. Its flowers are inconspicuous.