Golden St. Johnswort, a native species, has been added to the USWildflowers database (10/05/2018.) Scientific name is Hypericum frondosum. Photo below was taken at the Flat Rock Cedar Glades and Barrens State Natural Area, Rutherford County, TN on June 5, 2018. Go to the Golden St. Johnswort detail page for more information and photos.
Golden St. Johnswort – Hypericum frondosum