Seedbox, a native species, has been added to the USWildflowers database (08/11/2011.) Scientific name is Ludwigia alternifolia. It is also known by the common names Smooth Seedbox, Bushy Seedbox, Rattle-box, and Square-pod Water-primrose. Photo below was taken in the Walker County, GA on July 22, 2011. Go to the Seedbox detail page for more photos and information.