Description from Flora of China
Primula muscoides J. D. Hooker ex Watt var. tenuiloba Watt, J. Linn. Soc., Bot. 20: 15. 1882; P. indobella I. B. Balfour & W. W. Smith.
Herbs perennial, efarinose, to 2 cm tall, with remains of old leaves at base. Petiole narrowly winged, shorter than to slightly longer than leaf blade; leaf blade spatulate, 5--20 X 2--4 mm, base attenuate, margin deeply blunt lobulate-dentate, with oblong teeth, often revolute, apex obtuse to rounded. Scapes rarely to 2 cm, with a solitary flower; bracts solitary, adnate just below calyx, linear, to 4 mm. Flower subsessile, heterostylous. Calyx narrowly campanulate, 3.5--5 mm, parted to middle; lobes green or tinged purple, oblong to elliptic, apex obtuse or dentate. Corolla bright bluish violet, with a white eye; tube 6--8 mm, white pubescent outside; limb 1.5--2 cm wide; lobes narrowly obovate, deeply 2-lobed; lobules linear, ca. 3.5 X 1.5 mm. Pin flowers: stamens near base of corolla tube; style reaching middle of tube. Thrum flowers with positions reciprocal. Capsule cylindric, shorter than calyx. Fl. Jul.
Rocky hillsides, on moss-covered boulders; 4200--5400 m. S and SE Xizang [Bhutan, NE India, Nepal, Sikkim].