Scolochloa is a genus of grasses in the family Poaceae / Gramineae, now containing a single species, Scolochloa festucacea. Common rivergrass is a common name for the species. Scolochloa festucacea grows in Europe, temperate Asia, and North America. Its culms are erect and 100 – in height; its leaf blades are 15 - 30 cm long and 5 - 10 mm wide. The genus formerly included a second species, Scolochloa arundinacea, which is now placed in the genus Arundo as Arundo donax.