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. Very thick weedy area in western portion of prairie fen; about 25m south of woodland upland; Typha latifolia dominates the area; line of Toxicodendron vernix between quadrat and upland; common species include Lythrum salicaria, Apios americana, Eutrochium maculatum, Symphyotrichum firmum and Phalaris arundinacea; ground moist but not wet.