I came across this plant which was really abundant within a woodland. At first glance I assumed pendulous sedge as it is so big but taking a closer look I noticed the white hairs and so thought it must be a Luzula sp. yet I believe even great wood rush leaves only reach a max of 2cm in width and this as I remember was slightly bigger than that. I am completely on the wrong track? It is probably obvious to most what this mystery plant is?
No - you've latched on to the key feature and have successfully identified your plant - it is the Great Wood-rush (Luzula sylvatica). The whispy wite hairs on the leaf margins are the great give-away for the genus and this is by far and away the biggest and therefore pretty unmistakeable.