Muhlenbergia Wrightii, or more commonly know as Spike Muhly, is a graminoid with green foliage and yellow flowers of the genus Muhlenbergia. 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, blooms during early summer and is intolerant of shade. Muhlenbergia Wrightii or Spike Muhly's floral region is North America US Lower 48, specifically in the states of Arizona, Colorado, New Mexico, Oklahoma, Texas and Utah.
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