Ar·rhe·nath·er·um | \ˌarəˈnathərəm\

Definition of Arrhenatherum 

: a genus of Eurasian grasses that have 2-flowered spikelets, the first floret staminate and awned from the back and are naturalized in cooler parts of North America — see tall oat grass

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History and Etymology for Arrhenatherum

New Latin, from Greek arrhen-, arrhēn male + ather-, athēr awn; from the awned staminate lemma; akin to Sanskrit arṣati it flows, ṛṣabha bull, Latin ros dew

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