1) Character in the Aeneid 2) Genus elymus 3) Liliopsid genus 4) Monocot genus 
In Greek and Roman mythology, Elymus (or Elumos) was the mythical ancestor of the Elymians, natives of Sicily. Elymus was a Trojan, a natural son of Anchises and a brother of Eryx. Previous to the emigration of Aeneas, also a son of Anchises, Elymus and Acestes had fled from Troy to Sicily, and had settled on the banks of the river Crinisus, in th...[genus] Elymus is a genus of perennial grasses in the tribe Triticeae, which contains many of the main cereal grains. Plants of this genus are known generally as wildrye or wheatgrass. There are at least 150 species in this genus. Selected species ...
[n] - tall tufted perennial grasses (such as lyme grass or wild rye)
genus Elymus noun tall tufted perennial grasses (such as lyme grass or wild rye)