R. ungernii
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subgenus Hymenanthes section Ponticum subsection Pontica
Rhododendron aureum var. aureum Rhododendron aureum var. hypopytis Rhododendron brachycarpum ssp. brachycarpum Rhododendron brachycarpum ssp. fauriei Rhododendron brachycarpum ssp. fauriei forma nematoanum Rhododendron catawbiense Rhododendron caucasicum Rhododendron charadzeae Rhododendron degronianum ssp. degronianum Rhododendron degronianum ssp. heptamerum var. heptamerum Rhododendron degronianum ssp. heptamerum var. hondoense Rhododendron degronianum ssp. heptamerum var. kyomaruense Rhododendron degronianum ssp. heptamerum var. kyomaruense forma amagianum Rhododendron degronianum ssp. yakushimanum var. intermedium Rhododendron degronianum ssp. yakushimanum var. yakushimanum Rhododendron hyperythrum Rhododendron kurokimense Rhododendron macrophyllum Rhododendron makinoi Rhododendron maximum Rhododendron nikomontanum Rhododendron ponticum Rhododendron smirnowii Rhododendron sochadzeae Rhododendron ungernii SEE THE WHOLE 1998 CLASSIFICATION
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