common spike-rush, more...
[Eleocharis calva var. australis Torr., more]
Etymology: Eleocharis: Greek elos for "marsh" and charis for grace, referring to marsh plant
Plants: erect, perennial, 4"-40" tall, semi-aquatic, emergent sedge, alone or in spaced cluster; from rhizomes
Leaves: sheaths as base of stem
Flowers: in spiral covered by brownish scales; inflorescence solitary pointed spikelet
Fruits: gold brown nutlet with half of top covered with a cap
Habitat: wet; marshes, ditches, shores, water to 6' deep