Cankerweed – Native Plant of the Day 08/03/2017
Photo from 08/01/2011. Location: Blue Ridge Parkway, Haywood County, NC.
More photos / info at the Prenanthes serpentaria detail page.

Cankerweed – Prenanthes serpentaria

Also NPOD 07/26/2013, 07/26/2014, 07/26/2015, 07/26/2016