Is this blooming now from seed sown this year? Or is it last year's plant blooming this year? What I mean is, would this be it's normal bloom time? Your picture looks so very much like a brome grass that grows with wild abandon here on the prairies however they send up their seedheads in June, many with green seedheads but also the reddish copper that your picture shows. At some point - I believe it's right after they shed their pollen - the seedheads become very sticky.

This year, Pudge.

The more I look at it, the more I think it might be species M. sinensis. A few basal leaves have a faint white midrib.

Bump.

Any ideas? Need better pics?