Red fescue is a grass species that can grow in many types of habitats throughout the world, as long as there is no heavy fertilization. It forms broad tufts or mats and is a nutricious grass for wild animals. The flowering spikes are first green but often turn a reddish-brown, giving the plant a reddish glow. Red fescue has a number of subspecies, one of which is a salt-tolerant variation found on the higher parts of salt marshes. Red fescue is important for many insect species in salt marshes.