Nodding Mandarin, a native species, has been added to the USWildflowers database (05/30/2016.) Scientific name is Prosartes maculata.  Photo below was taken along the Piney River Trail (part of the Cumberland Trail) in Rhea County, TN on April 08, 2016. Go to the Nodding Mandarin detail page for more information.

Nodding Mandarin – Prosartes maculata