Carex sheldonii

Carex sheldonii is a species of sedge known by the common name Sheldon's sedge.
Distribution.
This sedge is native to the Western United States, where it grows in wet areas such as lakeshores and moist meadows.
Description.
"Carex sheldonii" produces triangular stems up to a meter tall from a network of rhizomes. The narrow, hairy leaves attach to the stems by reddish purple sheaths. The inflorescence is a solid, narrow cluster of flowers up to 50 centimeters long, holding up to 100 developing fruits.