What is "agrostis"

Yellowtop \Yel"low*top`\, n. (Bot.) A kind of grass, perhaps a species of Agrostis.

Agrostis \A*gros"tis\, n. [L., fr. Gr. ?.] A genus of grasses, including species called in common language bent grass. Some of them, as redtop ( Agrostis vulgaris), are valuable pasture grasses.

n. Any grass of the genus (term Agrostis Translingual), bentgrass.

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. It has been bred as a GMO creeping bent grass.

hundreds of species now considered better suited to other genera: Achnatherum Aira Alloteropsis Apera Arundinella Calamagrostis Chaetopogon 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 Zingeria