Eleocharis sphacelata
Glumes hardened on the back, with a distinct side vein. Spikelets cylindrical, 3–5 cm long, acute. Nut lenticular. Plants up to 2 m high. Widespread. Ponds and swamps. Tall Spike Rush
Glumes hardened on the back, with a distinct side vein. Spikelets cylindrical, 3–5 cm long, acute. Nut lenticular. Plants up to 2 m high. Widespread. Ponds and swamps. Tall Spike Rush