moor grass

noun

a grass characteristic of moors, especially purple moor grass (Molinia caerulea) of heath and fenland and blue moor grass (Sesleria caerulea) of limestone uplands

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