Senna Marilandica, or more commonly know as Maryland Senna, is a subshrub forb/herb with green foliage and yellow flowers of the genus Senna. It has a rapid growth rate and a height of 6.6 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 summer and is somewhat tolerant of shade. Senna Marilandica or Maryland Senna's floral region is North America US Lower 48, specifically in the states of Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia and Wisconsin.
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming