Little Barley is often a weed along the roadside and in pastures or hayfields in Virginia, Kentucky, Tennessee, Mississippi, Alabama, Georgia and Florida. It can be an indicator of disturbed sites, over-grazing and/or poor soil conditions. The plant flowers from March – June and is often easily identified by its grain-like seed head that distinguishes it from other winter annuals.
http://www.noble.org/imagegallery/grasshtml/LittleBarley.html
http://www.ppws.vt.edu/scott/weed_id/horpu.htm