]> GH barcode-02467313 United States of America North Carolina Yellow Gap Road #2. Yellow Gap Road (U.S. Forest Service road 1206) between U.S. highways 276 and 64 near Yellow Gap, Pisgah National Forest. Rhododendron calendulaceum (Michaux) Torrey (Michaux) Torrey 2023-06-13 10:22:04 C. C. Davis & R. E. Spangler