Primula heucherifolia Franchet subsp. humicola (I. B. Balfour & Forrest) W. W. Smith & Forrest; P. humicola I. B. Balfour & Forrest.

Herbs perennial. Leaves 2--4, forming a loose rosette, occasionally producing stolons in axils of leaves; petiole 4--13 cm, densely fulvous pilose; leaf blade orbicular, 3--8 cm wide, abaxially with spreading long hairs along veins, adaxially sparsely pilose, base deeply cordate, palmately lobed to 1/3--1/2 its width; lobes 7--9, 3-lobulate to 3-toothed, margin denticulate, apex acute. Scapes 10--30 cm, densely fulvous pilose; umbels solitary, or occasionally 2, superimposed, 3--12-flowered; bracts linear-lanceolate to narrowly oblong, 5--8 mm. Pedicel 0.5--1.5 cm, elongating to 4 cm in fruit, puberulous. Flowers heterostylous. Calyx often tinged with reddish brown, campanulate, 5--10 mm, parted to middle; lobes lanceolate, with 1 prominent main vein and 2 lateral veins. Corolla rose to purple; tube 1.1--1.3 cm; limb 1--2 cm wide; lobes obovate, 6--8 X ca. 5 mm, emarginate. Pin flowers: stamens near base of corolla tube; style ca. as long as corolla tube. Thrum flowers with positions reciprocal. Capsule ellipsoid, ca. as long as calyx. Fl. Jun-Jul, fr. Jul. 2n = 22.

At margins of thickets and forests; 3000--4000 m. SE Xizang, NW Yunnan [Bhutan, NE India, Myanmar, Nepal, Sikkim].