I am really stuck on identifying a grass I found in a lowland meadow (wet in places) in Surrey so wondered if anyone could help me - see attached photos (sorry couldn't zoom in much). To me, it looks quite like Agrostis capillaris Common Bent (also found in the meadow) but according to my books it's too big and tall (>70cm) to be that. The stem & leaves are quite a dull grey-green. Can anyone tell me what it is please?
your grass could be Black Bent (Agrostis gigantea). This can get to over a metre tall and is really quite similar to Agrostis capillaris. It can be told apart by its longer ligules (they are at least as long as wide, usually longer) - which seems to be the case from your photos.
It doesn't like really wet meadows preferring better drained soils.
It hybridizes with both A. capillaris and A. stolonifera just to make things more difficult!
Many thanks for this suggestion. You are right, the ligules are definitely longer than wide and over 2mm which suggests the grass isn't Agrostis capillaris. The meadow was dry in places (with wet flushes) so I guess it's possible it was A.gigantea - not sure of the exact geology/soil composition but think it is Wealden clay in that area, although being fairly near the Greensand ridge I guess the soil could be sandier in places and therefore better drained.
Think hybrids are a bit advanced for me at this stage but there was definitely lots of A.capillaris so I guess it's possible..!