Xanthorhiza simplicissima (Yellowroot)
An incredibly useful but rarely grown native woodland groundcover. Erect stems to about 18" tall are covered with celery-looking foliage all summer long in a bright green. Come fall, leaves turn bright golden yellow, among the very last to color and drop. A tough and durable plant that will perform well in full sun or light shade. Unique, purple/brown flowers before the leaves are not all that showy but offer a nice little ID cue. Choice and hard to find.