Smooth Brome
Bromus inermis is a species of the true grass family (Poaceae). This rhizomatous grass is native to Europe and considered invasive in North America.
The plant is characterized by an erect, leafy, long-lived perennial, 46 to 91 cm (1+ 1⁄2 to 3 ft) tall, rhizomatous and commonly producing a dense sod. It starts growth in early spring; flowers May to July; reproduces from seeds, tillers, and rhizomes.