Schoenoplectus purshianus (Fernald) M.T.Strong  
Family: Cyperaceae
Pursh's bulrush, weak bulrush, weak-stalk bulrush, weak-stalk club-rush
Schoenoplectus purshianus image
from USDA Plants website  
Etymology: Schoenoplectus: Greek a 'rush leek' ' plecto for "plaited, twisted" schoenos for "rush or reed"
Plants: annual sedge
Conservation Status: Native
Schoenoplectus purshianus image
Schoenoplectus purshianus image
Schoenoplectus purshianus image
Schoenoplectus purshianus image