corkscrew grass

noun

a variety of spear grass, Austrostipa scabra, native to Australia, having very fine foliage, an erect seed head, and awns that twist up the seed head: family Poaceae

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012