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CommentsThis is a striking plant while in bloom and it has attractive foliage. It is difficult to distinguish Wild Senna from Senna marilandica (Maryland Senna), which has a very similar appearance. Generally, Wild Senna has a more northern distribution than Maryland Senna, but in Illinois their ranges overlap. On Wild Senna, the pistils of the flowers have long white hairs, while in Maryland Senna these hairs are shorter and more appressed. Wild Senna has a tendency to produce a greater abundance of flowers than Maryland Senna, although this characteristic is influenced by environmental conditions, such as the abundance of sunlight. Another scientific name for Wild Senna is Cassia hebecarpa.