Bromus rigidus, commonly known as ripgut brome, is an annual grass that originates from the Mediterranean region of Eurasia and has become naturalized in parts of North America. It typically grows between 0.3 to 3 feet tall and features pubescent (hairy) culms, leaves, and panicle branches. The plant is characterized by its stiff, erect growth habit and dense, spiky inflorescences that can cause injury to grazing animals, hence the common name "ripgut." Flowering occurs in late spring to early summer, and the flowers are not particularly showy, being more functional than ornamental.

Ripgut brome is known for its ability to thrive in disturbed soils and is often found in grasslands, agricultural fields, and along roadsides where it can become a problematic weed. It is not typically cultivated for ornamental purposes due to its invasive nature and potential to outcompete native vegetation. In cultivation, it prefers full sun and can tolerate a range of soil types, but it is often found in dry, sandy, or gravelly soils. Gardeners should be cautious about introducing ripgut brome to their landscapes, as it can become aggressive and difficult to control. It is not recommended for use in gardens or naturalized areas outside its native range due to its invasive potential.CC BY-SA 4.0