Bit of a stab - Long papery ligule, broad soft leaf, 2 quite large unequal glumes. Only appears to have 2 (maybe 3 - can't really tell) florets. Branches not reflexing maybe due to the flowerhead just having emerged
I don't know where Ehrharta came from! I think that's from when I didn't realise I'd clicked on a name Only one with runners in that area that I'm aware of is Poa pratensis