The first time I saw Wild Senna (Senna hebecarpa) was during a tour of Wild Ones member’s home in Whitefish Bay, Wisconsin back in the late 1980s. She had used it as a privacy border between her driveway and her neighbors. I remember thinking what a unique way to provide privacy, yet a sense of place. I recall it was loaded with insects buzzing and crawling around.
For more information about this interesting plant, go to The Xerces Society blog Plants for Pollinators.