Description from Flora of China
Primula souliei Franchet subsp. humilis (Pax & K. Hoffmann) W. W. Smith & Forrest.
Herbs perennial. Leaves forming a rosette; petiole 2--3 X as long as leaf blade, puberulous; leaf blade broadly ovate to suborbicular, 7--15 X 7--12 mm, abaxially white or pale yellow farinose, adaxially scabrous, minutely appressed pubescent, base truncate to shallowly cordate, margin irregularly incised-dentate to serrate, apex acute to obtuse. Scapes 1.5--5 cm, puberulous; umbels 1--5-flowered; bracts narrowly lanceolate to subulate, 3--10 mm. Pedicel 0.5--1.5 cm, puberulous. Flowers heterostylous. Calyx campanulate to tubular-campanulate, 6--10 mm, puberulous outside, densely farinose inside, parted to below middle, 5-veined; lobes lanceolate to oblong-lanceolate, apex acute. Corolla rose-blue; tube 1.1--1.2 cm; limb 1.5--2 cm wide; lobes obovate-oblong to oblong, 6--8 X 5--6 mm, margin entire, apex rounded. Pin flowers: stamens ca. 3 mm above base of corolla tube; style ca. as long as calyx. Thrum flowers with positions reciprocal. Capsule oblong, nearly as long as calyx. Fl. Jun.
* On granite rocks, meadows; 4000--4800 m. W Sichuan (Dawu Xian, Xinlong Xian)