Agrostis exarata is a species of grass known by the common names spike bentgrass, spike bent, Pacific bentgrass, and spike redtop. It is native to western North America from Texas[1] to the Aleutian Islands.
This is a common perennial grass reaching one to three feet in height with long, thin, flat leaves each with a ligule of 2-.
The tuft inflorescence may be up to long and is usually dense with tiny spikelets.[2] It reproduces mainly by seed, but it can also spread via rhizome. This bunchgrass occurs in many plant communities in varied climates. It is considered good forage for livestock.