10' berm on the upslope side, mature floodplain forest on the river side. Phalaris in flower, but not in plot.;Very patchy with at least 7 different plant associations (grass/Sparganium/Sagittaria; Sagittaria/sedge; Sagittaria/Lycopus; Rosa palustris/grass; Alnus/Typha/grass; Cephalanthus/grass). Sampled the latter because it is the largest association and in the center of the occurrence. Cephalanthus tops appear dead.