Native to tropical America, now widespread in the western United States.
A summer annual grass weed, common in cultivated fields, orchards, waste places, roadsides and ditchbanks.
The mature plant may grow stems up to 3 feet high. Leaf blades are about 1/4 inch wide and up to 6 inches long. They have a few long hairs at the base. The sheath at the base of the upper leaves may be somewhat inflated.
The flower head is composed of from 3 to 10 narrow feather-like spikes that tend to point upward and are close together. These spikes are 1 to 3 inches long, and are whitish to red tinged.
The flowers are arranged in 2 rows along each spikelet, and each flower group has a slender awn about 1/4 to 1/2 inch long.
Characteristicts Important to Control: