Slender rats tail grass

Identification
Tufted, warm season perennial grass  to 80cm tall
Leaves are pale green, largely  hairless, quite tough and waxy.  Ligule  has a hairy rim
Seedhead is a long, narrow,  spike-like panicle to 40cm long.  The  short branches are pressed against the main stem and the main stem is visible  along much of its length
Flowers from spring to summer