Narrow fen at base of Quercus sp. Dominated upland. Water appears to seep out from base of upland and creates tranition/wooded fen zone at base. This occasionally gives way to high quality patches of fen, but much of the fen is overtaken by Lythrum salicaria and Typha spp. Area not likely to persist at prairie fen without management. Weedy area on west side of fen; about 20m south of woodland upland; about 15m west of two Populus tremuloides trees; about 5m west of large Toxicodendron vernix shrub; area dominated by Phalaris arundinacea and Typha latifolia. Much of the Phalaris is laying over resulting in highly increased ground cover; other species in area include Impatiens capensis, Eutrochium maculatum, Calystegia sepium, and Onoclea sensibilis; ground moist but not wet.