Barnyardgrass

Echinochloa crus-galli

Barnyardgrass in an onion field
Barnyardgrass in an onion field. Photo courtesy of Howard F. Schwartz. Licensed under CC BY 3.0.
Barnyardgrass is a summer annual grass weed that prefers moist, compact soils. It propagates via seeds, with a single plant able to produce over 7000 seeds.