Agrostis (bent or bentgrass) is a large and very nearly cosmopolitan genus of plants in the grass family, found in nearly all the countries in the world.

[10] As of May 2024[update], Plants of the World Online accepted the following species:[11] Hundreds of species formerly listed in the genus Agrostis have been moved to other genera, including Achnatherum, Aira, Alloteropsis, Apera, Arundinella, Calamagrostis, Chionochloa, Chloris, Cinna, Colpodium, Crypsis, Cynodon, Deschampsia, Dichelachne, Digitaria, Eremochloa, Eriochloa, Eustachys, Gastridium, Graphephorum, Gymnopogon, Lachnagrostis, Leptochloa, Muhlenbergia, Pentameris, Phippsia, Piptatherum, Poa, Polypogon, Puccinellia, Reimarochloa, Relchela, Schismus, Sporobolus and Zingeria.

Bentgrass is used in turf applications for its numerous advantages: it can be mowed to a very short length without damage, it can handle a great amount of foot traffic, it has a shallow root system that is thick and dense allowing it to be seeded and grow rather easily, and it has a pleasing, deep green appearance.

Creeping bent aggressively produces horizontal stems, called stolons, that run along the soil's surface.

These allow creeping bent to form dense stands under conducive conditions and outcompete bunch-type grass and broadleaf weeds.

Velvet bent has recently had a resurgence in the UK due to the high demands on greens from inclement weather and speed expectations.