Tour of Arnold Arboretum
Rhododendron 'Bronze Unique' (Ghent)
Picture by S & J Perkins
'Bronze Unique' is a Ghent hybrid before 1874 that is listed as vivid red, orange blotch (Galle)
Whatever this plant is, it is still nice. Arnold Arboretum in Jamaica Plain Massachusetts is famous for its large collection of hardy woody plants. The arboretum is open to the public.