A tuft of grass is a small group of grass blades that grow together in a CLUMP or TUSSOCK. It is usually found in areas where the soil is dry and the grass is sparse. The term 'tuft of grass' is often used to describe a patch of grass that stands out from the surrounding area. A TUSSOCK is a larger CLUMP of grass, typically growing in a circular shape. It is usually found in areas with wetter soils and more abundant grass growth.