From a soft, dark water pond in Madison County, FL. This plant may be an exotic. Leaf sheaths are open, possibly a rush or grass, not a sedge. Bases of leaves are red. Some appear as nodes, and roots occur at some of the nodes. Individual plants are clumps but arise from rhizomes; and new/short rhizomes are visible and arise from root clump of some plants. Leaves with veins/midribs slightly toothed, but not on leaf margins.