Cynosurus cristatus, Crested dog's-tail, is a short-lived perennial grass in the family Poaceae, characterised by a seed head that is flat on one side. It typically grows in species rich grassland. It thrives in a variety of soil types but avoids the acid and calcareous extremes of pH, and prefers well drained soils. It may be grown as an ornamental plant.
Rich grassland areas typically grows mostly cynosurus cristatus, Crested dogs-tail, a short-lived perennial grass in the family of Poaceae.
The context does not state whether grassland areas mostly grow this type of grass, it however states that this is where the grass is most commonly found. Because the context does not state which plant is most common in rich grassland areas this statement is therefore neither definitely correct or definitely incorrect. 