Fruits borne in a ring; stamens 6; inflourescences much branched.
Don E. Eyles, A Guide and Key to the Aquatic Plants of the Southeastern United States (Wahington D.C.:U.S. Government Printing Office, 1944) 72
1615×2400, 593.2 KiB
689×1024, 81.3 KiB
430×640, 40.9 KiB
215×320, 17.3 KiB