Unidentified Grass Species?

Unidentified Grass Species?

Observation - Unidentified Grass Species? - UK and Ireland. Description: This species was found growing happily on an allotment site at Witts Hill, Southampton. Similar to Maize but much smaller & finer. Has anyone got any ideas?

This species was found growing happily on an allotment site at Witts Hill, Southampton.
Similar to Maize but much smaller & finer.
Has anyone got any ideas?