光亮杜鹃(原变种) guang liang du juan (yuan bian zhong)

Rhododendron nitidulum var. nubigenum Rehder & E. H. Wilson; ?R. yulingense W. P. Fang.

Abaxial leaf surface with uniformly fawn scales. Fl. May–Jun.

Alpine meadows, moorlands, moist places by streams; 3200–4500(–5000) m. W Sichuan.

From the original description, it seems probable that Rhododendron yulingense (W. P. Fang, Acta Sci. Nat. Univ. Szechuan. 1957(2): 217. 1957), described from W Sichuan (Kangding), is a synonym of R. nitidulum var. nitidulum.