Bromus sitchensis

About

Bromus sitchenis, the Alaska brome, is a perennial grass native to the North Pacific coast of North America, in woods and banks from Alaska to Oregon. It can grow up to 1.8 m tall, but is often shorter. Leaf blades are elongate, 7–12 mm wide, and as much as 35 cm long. Spikelets 2.5 to 3.5 cm long with between 6 and 12 flowers, awn is 5 to 10 mm long.

Summary from Wikipedia