It droops like oats and it has long awns like barley. As this is growing at the edge of a wheat field, I’m guessing that it is great brome, Anisantha diandra, although there are some similar-looking species. Great brome is a grass from the Mediterranean region which grows on waste ground, roadsides and field edges.
The Wikipedia reports that it, and a similar brome, also get referred to as ‘ripgut brome’ in some parts of the world, where the species have become troublesome weeds.
