Thinopyrum intermedium, known commonly as intermediate wheatgrass, is a sod-forming perennial grass in the Triticeae tribe of Pooideae. It is part of a group of plants commonly called wheatgrasses because of the similarity of their seed heads or 'ears' to common wheat. However the wheatgrasses in general are perennial, while wheat is an annual. The grass is native to Europe and Western Asia. (Wikipedia)