Distribution: Oklahoma to South America

Habitat: Marshes, shallow ponds, seasonally immersed depressions. Freshwater

Recognition: To 3' tall, the stems hollow and fully septate (E. cellulosa may have partial cross-walls), the spikelet equaling the stem in diameter.  Perianth bristles retrorsely barbed (vs. smooth in E. cellulosa).

Having partly septate spongy (vs. hollow) culms, E. cellulosa is a saline species

Florida status: Native, common