Great Brome (*Bromus diandrus) Tall grass. Flower clusters open, slender stalked, long-awned.
Prairie Grass (*Bromus catharticus) Tall grass, awns short or absent.
Soft Brome (*Bromus hordaceus) Medium grass, long-awned.
Chilean Brome (*Bromus lithobius) Medium grass. Lemmas clustered, shortly awned.
Red Brome (*Bromus rubens) Low grass. Flowers in dense clusters, held erect.