graminoid, emergent aquatic, aquatic
July - September
0.2 - 1.0
Perennial with persistent leaf bases. The leaf blades are involute, 1.7-2 mm wide, and the achenes have cells arranged in longitudinal lines. Similar to E. tomentosa, which is an annual with shorter, flat leaf blades to 1 mm wide and achenes that have cells in horizontal rows.
Grows in sand, sandy peat or clay soils of savannahs, pinelands, grass-sedge bogs, meadows and prairies.
Sands, sandy peats or clays of savannahs, open pinelands, upper edges of grass-sedge bogs, meadows and prairies.