Agrostis castellana Highland Bent I
This introduction looks like an overgrown Agrostis capillaris (Common Bent) at first and like many of these wispy grasses is very difficult to photograph. Close examination of the ligules shows that they decrease in size down the stem which (I was told) is a diagnostic for this species.
This plant is described as a casual of grass seed and is also a wool alien but has spread throughout England. In spite of its name there is very little in Scotland none in Ireland and only a few sites in Wales.
Ham River Lands, London 7th July 2007
Added on 25 Jul 07, updated 21 Jun 08, updated 22 Feb 10, updated 23 Apr 10, updated 02 Mar 12, updated 29 Jan 13