Description: This is an excellent deciduous ground cover for damp areas. I’ve read in the literature that the leaves are described as celery-like, and I couldn’t describe them any better – they definitely look the same. It only grows approximately 2 to 3 feet in height although in many cases it might stay lower than that. It will make a wonderful ground cover for any damp area and spreads quite rapidly. Being a native of eastern United States, it is also a good understory plant for the native plant garden. The roots are indeed yellow, and I understand the Native Americans used these roots to produce a yellow dye. This is another plant that is not too well known and is under used. Think of it when you need a damp area ground cover.