Douglas R. Dewey

Thinopyrum intermedium, known commonly as intermediate wheatgrass, is a sod-forming perennial grass in the Triticeae tribe of Pooideae native to Europe and Western Asia. 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, wheatgrasses generally are perennial, while wheat is an annual. Trials with intermediate wheatgrass, the product of which is trademarked by the Land Institute as "Kernza", show that it can be grown as a "multi-functional" crop, yielding various commodities as well as ecosystem services.

Leymus ambiguus is a species of grass known by the common names Colorado wildrye and Rocky Mountain wildrye. It is native to the Rocky Mountains of the United States, growing mainly on rocky hillsides on the eastern slopes of the mountains in Colorado and New Mexico; it has also been reported from Utah. It is a climax species on the dry grasslands of the Colorado Front Range. This perennial grass produces loose clumps of stems of about 60 centimetres (24 in) to 110 centimetres (43 in) high, each of which is about 1 millimetre (0.039 in) thick. It is sometimes rhizomatous. Most of the leaves

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Thinopyrum elongatum, the tall wheatgrass, is a species of perennial herb in the family Poaceae (true grasses). They have a self-supporting growth form and simple, broad leaves and yellow flowers. Individuals can grow to 5 feet tall.

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