Creeping Bent (Agrostis stolonifera)
Creeping Bent (Agrostis stolonifera) has fine narrow leaves and spreads by means of long trailing stolons. Produces a dense sward that requires maintenance to avoid build-up of extremely high thatch levels. Recent cultivars have improved the density further, enabling excellent and uniform fine turf to be produced.
More information about Agrostis stolonifera can be found on Wikipedia.