- Elymus, genus Elymus - tall tufted perennial grasses (such as lyme grass or wild rye)
--1 is a kind of monocot genus, liliopsid genus
--1 is a member of
--1 has members: lyme grass; wild ryeGramineae, family Gramineae, Graminaceae, family Graminaceae, Poaceae, family Poaceae, grass family