Rhododendron sect. Tsutsusi
…on the basis of their leaves, young twigs and corolla. Phylogenetic analysis has confirmed both the monophyly of the section and its subsections. Rhododendron subsect. Brachycalyx Sweet, type Rhododendron farrerae. 15 species. - leaves deciduous, pseudoverticillate, rhombic, crowded at the shoot apex and monomorphic, hairs usually…