Sedges, like this Pennsylvania, are not perfect. In botanical terms, perfect flowers have both pistils and stamens. Sedges always have those parts and functions in separate flowers. There's an irony here. Perfect flowers are believed to be less effective in insuring the vitality of a species than imperfect ones. Having the parts separate insures cross pollination. Here, the club-like part at the ends had stamens. The pistils were lower, and may have been active at a different time. In any case, it works well, and there are a lot of sedges. Pennsylvania sedge grows in woods in AL, AR, CT, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MS, NC, ND, NH, NJ, NY, OH, PA, RI, SC, SD, TN, VA, VT, WI, WV, MB, ON, and QC. Lenawee Co MI, 4/29/12. Sedge family, Cyperaceae.