Posted: 02/06/2014 at 12:46
Without seeing the whole plant it is difficult. It looks like Carex pendula or pendulous Sedge which forms very large clumps if you let it and self seeds everywhere. Established clumps are very hard to dig out.
I'm no grass expert so someone on the forum may correct me. However, if it is pendulous Sedge then I can tell you of my experience of it. I used to have some in my last garden. I was forever pulling up seedlings and cursed when I tried digging up an established clump. It is brilliant, however, for dark, shady areas or problem corners. I planted it in shade to fill a gap and it was much more well-behaved. I am looking to acquire some for my back garden, which has a longish deep border that is in shade a lot of the time, it will help to fill it out quite nicely. It is beautiful but plant it in full sun in good soil at your peril!