flowers solitary or a few in hte axils of the leaves.
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) 64
2400×1463, 407.9 KiB
1024×624, 51.9 KiB
640×390, 26.3 KiB
320×195, 9.9 KiB