Adjacent to the plot, to the north and east Typha dominates, choking out the alder and the buckthorn. To the southwest it quickly grades to a thin band of successional Prunus serotina and then old field. To the west is the classic Abies/Alder swamp. For more context see Leah Ceperley's Balsam Swamp plots and CASP.28 (the Typha invasion).;Early successional rich shrubland dominated by Alder/Rhamnus. The alder here is very dense with thousands of small 2 cm to 4 cm dbh stems with an average height of 1.5 meters. Lots of sunlight reaches the ground beneath the shrubland. This coupled with the circumneutral soils make for a lush and diverse herb layer dominated by Glyceria and Leersia. The community is a thin band just wide enough for a plot in all directions. Then it quickly grades into different community types. The swamp is likely fed by ground water seepage.
Representativeness
The plot was placed to emphasize the Rhamnus population. This is most likely a sub-type of the rich alder community type. There are plots from this site which include Rhamnus. However these all have Abies in them.