Calamagrostis koelerioides

About

Calamagrostis koelerioides is a species of perennial bunch grass in the family Poaceae native to western North America commonly known as the fire reedgrass, dense-pine reedgrass, pineland reedgrass, or San Diego reedgrass. It ranges from California north to Washington, Idaho, Montana, and Wyoming. It is found in many habitat types, including mountain meadows, chaparral, pine and spruce forests, and on slopes, dry hills, and ridges.

Summary from Wikipedia