Sporobolus africanus

Sporobolus africanus, or rat's tail grass, is a true grass in the tribe Zoysieae. Sporobolus africanus is known by many common names, including African dropseed, African dropseed grass, dropseed grass, Indian rat's tail grass, Parramatta grass, rat tail grass, rat's tail, rat's tail grass, rats' tails, ratstail, ratstail dropseed, rattail dropseed, rat-tail grass, rattail grass, rattailgrass, rush grass, smut grass, smutgrass, tough dropseed, tufty grass, and tussock grass....read more on Wikipedia.