Sagittaria trifolia
 Sagittaria trifolia is a plant species widespread across the wet areas in Europe and in much of Asia. It is native to Ukraine European Russia Siberia the Russian Far East Central Asia China India Iran Iraq Japan Korea Pakistan Indonesia the Philippines and many smaller countries in between. It is also naturalized in the Fiji Cook and Society Islands in the Pacific. Sagittaria trifolia has underground tubers and is cultivated as a food crop in parts of Asia.