-ˈȯgəˌstēn- noun
Usage: usually capitalized S&A
Etymology: after St. Augustine — more at augustinian
1. : a perennial much-branched creeping grass ( Stenotaphrum secundatum ) of the southern United States valuable as a sand binder and sod grass — called also buffalo grass
2. : a grass ( Manisuris rugosa ) similar to St. Augustine grass