Elymus Riparius, or more commonly know as Riverbank Wildrye, is a graminoid with dark green foliage and yellow flowers of the genus Elymus. It has a moderate growth rate and a height of 4.5 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 mid summer and is tolerant of shade. Elymus Riparius or Riverbank Wildrye's floral region is North America US Lower 48, specifically in the states of Arkansas, Connecticut, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont and Wisconsin.
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