Carex nervina

Carex nervina is a species of sedge known by the common name Sierra sedge.
Distribution.
This sedge is native to California, including the Sierra Nevada and San Joaquin Valley, and adjacent parts of Oregon and Nevada, where it grows mainly in mountain meadows.
Description.
"Carex nervina" forms thick clumps of spongy, winged stems up to about 70 centimeters tall. The inflorescence is a dense cluster of a few compact spikes up to 3 centimeters long. The fruit is coated in a shiny green or brown toothed perigynium.