1) Genus bromus 2) Liliopsid genus 3) Monocot genus 
Bromus is part of the cool-season grass lineage (subfamily Pooideae), which includes about 3300 species. Within Pooideae, Bromus is classified in tribe Bromeae (it is the only genus in the tribe). Bromus is closely related to the wheat-grass lineage (tribe Triticeae) that includes such economically important genera as Triticum (wheat), Hordeum (ba...
[n] - a genus of grasses of the family Gramineae
genus Bromus noun a genus of grasses of the family Gramineae