Achnatherum Speciosum, or more commonly know as Desert Needlegrass, is a graminoid with green foliage and yellow flowers of the genus Achnatherum. It has a moderate growth rate and a height of 2 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during late spring, is intolerant of shade and is routinely available commercially. Achnatherum Speciosum or Desert Needlegrass's floral region is North America US Lower 48, specifically in the states of Arizona, California, Colorado, New Mexico, Nevada, Oregon and Utah.
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