Grassland

имя существительное сенокосное угодье; луг, пастбище

Большой англо-русский словарь

Grassland

noun 1. farmland occupied chiefly by forage plants and especially grasses 2. a. land on which the natural dominant plant forms are grasses and forbs b. an ecological community in which the characteristic plants are grasses

Merriam-Webster's Collegiate Dictionary