Hordeum marinum, commonly known as sea barley or seaside barley, is a species of grass. Hordeum murinum is quite widespread and common. It flowers during May through July in mainly coastal areas. In the British Isles it is absent throughout most of Ireland and Scotland but is common in England and Wales. It can grow to 30 cm in height, and its unbranched spikes can reach 10 cm long. It produces small, dry nutlets and its leaves can be 8 mm wide with short, blunt ligules. It is an annual winter species whose seeds germinate and develop in the spring.It is also referred to as wall barley and are tetraploids.It is distinct from other species of the genus because of its morphology and molecular genetics.It is also distinct because of the barriers it has with the Hordeum taxa when it comes to its ability to cross with other species. Weedy barley species is an important component of annual pastures.This is useful for feeding grazing animals. It is also the main source of forage for cattle production in areas with water deficits. This plant is useful. How to get rid of: Dig the beds with a pitchfork. This will prevent you from cutting the rhizomes of perennial weeds. And with a shovel, do it for sure. And the more small pieces remain in the soil, the more weeds will grow next year.