Carex luzulina is a species of sedge known by the common name woodrush sedge. It is native to Canada and the USA.
Carex luzulina produces loose to dense clumps of rhizomed stems approaching 90 centimeters in maximum height. The inflorescence is made up of a few spikes of flowers with dark colored scales. The fruit is coated in a sac called a perigynium which is generally greenish with some dark purple coloration.
This sedge is native to western North America from British Columbia to California to Wyoming, where it grows in wet habitat such as bogs and mountain meadows.