On edge of grassy area outside Merthyr Vale alongside River Taff.
No interactions present.
Yes- it's definitely cock's-foot. If you pick the flower and hold it upside-down it vaguely resembles a cock's foot- hence the name.
Dactylis glomerata (cocksfoot) is one of the easiest grasses to identify, as the inflorescence is fairly distinctive (IMO the nearest confounder is Phalaris arundinacea (reed grass), which is bigger, with broader leaves, and is found in marshy and aquatic habitats), the species is very common on roadside verges and meadows, and the inflorescence can be seen in various stages of maturity for nearly the whole of the year.
...grasses that I can actually ID on sight!
And that's despite having been on a (not very worthwhile) 2-day Grass ID course in Epping Forest.....
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 51.6827, -3.3415
OS grid ref: ST073990