MULTICAULE ssp. RUGOSUM K. T. Fu, 1986
Distribution : South-eastern Tibet, China (North-western Yunnan), rock crevices, 2200 - 2300 m.
Description (according to IHSP, 2003) :
Differs from ssp. multicaule :
Stems thick, bark basally rugose when dry.
Leaves ovate, narrowly oblong in the upper stem parts.
Inflorescences : Flowering branches without subsidiary inflorescence ; inflorescences cincinni forked.
Flowers : Sepals sublanceolate to narrowly semi-oblong, petals unequal in length.