A friend of mine in the middle of England UK has the grass in the photograph invading his domestic garden lawn. He especially mentions the long root in the photo. Any I D would be helpful. Thank you
It looks like Elymus repens.....commonly known as couch grass. A blinking pest because of the invasive roots. Couch grass / RHS Gardening
Leaves are sitting too close to each other, and they do not have specific folding in the points where ligula should be... I would check whether stems at the base are round or triangular, it might be a sedge.
