Leaves 2.2-2.6(-3.2)x as long as broad, lower epidermis glaucous, papillate, with conspicuous stalked glands.
Distribution China (S Tibet).
Awards AGM 1994, to a clone ‘Seinghku’.
Subsp. papillatum apparently intergrades with R. chamaethomsonii in S Tibet. R. Forrestii Diels var. tumescens Cowan & Davidian is one of the intermediate forms.