Rhododendron floccigerum var. appropinquans Rhododendron phaedropum Rhododendron floccigerum subsp. appropinquans Rhododendron tawangense Rhododendron neriiflorum var. phaedropum Rhododendron neriiflorum subsp. phaedropum
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024