Sicklepod, a native species, has been added to the USWildflowers database (02/21/2013.) Scientific name is Senna obtusifolia.  It is also known by the common names Sicklepod Senna, Java Bean, Blunt-leaf Senna, Chinese Senna, and Arsenic Weed.  Photo below was taken near Pigeon Mountain, Walker County, GA, on August 11, 2012.  Go to the Sicklepod detail page for more photos and information.

Sicklepod – Senna obtusifolia