Agrostis exarata
Encyclopedia
Agrostis exarata is a species of grass
Poaceae
The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...

 known by the common names Pacific bentgrass, spike bentgrass, and spike redtop. It is native to western North America from Texas 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
Ligule
A ligule — is a thin outgrowth at the junction of leaf and leafstalk of many grasses and sedges or a strap-shaped corolla, such as that of a ray floret in plants in the daisy family....

 of 2 to 4 millimeters. The tuft inflorescence may be up to 30 centimeters long and is usually dense with tiny spikelets
Raceme
A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

. It reproduces mainly by seed, but it can also spread via rhizome
Rhizome
In botany and dendrology, a rhizome is a characteristically horizontal stem of a plant that is usually found underground, often sending out roots and shoots from its nodes...

. This bunchgrass occurs in many plant communities in varied climates. It is considered good forage for livestock.

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