Dulichium arundinaceum var. arundinaceum  
Family: Cyperaceae
pond sedge, three-way sedge
[Cyperus spathaceus L., Dulichium spathaceum (L.) Rich. ex Pers.]
Dulichium arundinaceum var. arundinaceum image
Andrew Hipp  
Etymology: Dulichium: name obscure
Plants: erect, perennial, 1-3' tall, semi-aquatic, emergent sedge, interlocking stands; stems stiff, round, hollow unlike most sedges; spreading rhizomes
Leaves: narrow 2-7" long stiff, spiraling up and away from stem
Flowers: inflorescence long spikelets in 2 rows in upper leaf axils
Fruits: brownish, beaked nutlet with fine barbed bristles
Habitat: wet; shallows less than 3' deep
Conservation Status: Native
Dulichium arundinaceum var. arundinaceum image
Robert W. Freckmann  
Dulichium arundinaceum var. arundinaceum image
Linda W. Curtis  
Dulichium arundinaceum var. arundinaceum image
Paul Skawinski  
Dulichium arundinaceum var. arundinaceum image
Christopher Noll