Not in flower in early September
No identification made yet.
No interactions present.
Tentative Cocksfoot Dactylis glomerata
Grasses are difficult to identify with or without flowers. If you have access to a scanner you can sometimes get a better view of the structure. What is particularly important is a structure called the ligule this is attached when the flat part of the leaf (blade) joins the leaf sheath.
Good luck with grasses
Lat/Lng: 51.5586, -0.1059
OS grid ref: TQ314861
Summer Meadow, Long Mead in Gillespie Park. Location between mainline railway and residential streets.