Source: Magness et al. 1971
The wheatgrasses are hardy, mainly perennial, erect grasses, important especially in the Northern Great Plains. The seed heads resemble wheat heads, hence the name. They may form sods or grow in bunches. They are suitable feed for all classes of livestock. They produce growth early in the spring.
Around 150 species of Agropyron are known in the temperate regions of the world, about 30 in North America.