Keywords: Rhododendron metternichii SZ9.png Plate from book Rhododendron degronianum subsp heptamerum var heptamerum syn Rhododendron metternichii Flora Japonica Sectio Prima Tafelband 1870 Philipp Franz von Siebold and Joseph Gerhard Zuccarini see http //www biolib de PD-Art Rhododendron degronianum - botanical illustrations Flora Japonica |