Primula stenocalyx Maxim.

Herbs perennial. Leaves forming a rosette; petiole usually indistinct or occasionally slightly shorter than leaf blade; leaf blade obovate to oblanceolate or spatulate, 1--5 X 0.5--1.5 cm, efarinose or white or yellow farinose abaxially, base attenuate, margin nearly entire, crenulate to dentate, apex rounded to obtuse. Scapes 1--15 cm, glandular or occasionally farinose toward apex; umbels 4--16-flowered; bracts narrowly lanceolate, 0.5--1(--1.5) cm. Pedicel 3--15 mm, ± glandular. Flowers heterostylous. Calyx tubular, 6--10 mm, parted to 1/3--1/2, 5-ribbed; lobes oblong to lanceolate, ciliolate, apex acute to obtuse. Corolla bluish lavender to pink; tube 0.9--1.5 cm; limb 1.5--2 cm wide; lobes broadly obovate, deeply emarginate. Pin flowers with stamens ca. 2 mm above base of corolla tube; style reaching level of calyx. Thrum flowers with positions reciprocal. Capsule oblong, nearly as long as calyx. Fl. May-Jul. 2n = 16@.

S Gansu, E Qinghai, W Sichuan, NE Xizang

* S-facing grassy slopes, ditches, peat; 2700--4300 m.

Primula biondiana Petitmengin; P. cognata Duthie; P. kanseana Pax & K. Hoffmann; P. leptopoda Bureau & Franchet; P. stenocalyx var. luteofarinosa W. W. Smith.