Primula barbatula W. W. Sm.

Herbs perennial, efarinose, glabrous, forming leaf rosettes 1.2--2 cm in diam., with remains of withered leaves at base, often with 3--5 mm stolons. Petiole narrowly winged, usually 2--3 X as long as leaf blade; leaf blade spatulate, 4--8 X 1--4 mm, ± succulent, base cuneate-attenuate, upper 1/2 deeply incised into 3--7 narrowly triangular, ± blunt teeth, apex rounded. Scapes 4--15 mm, with a solitary flower; bracts solitary, linear. Pedicel 1--2 mm. Flower heterostylous. Calyx cup-shaped, 2.5--3 mm, parted to ± middle; lobes lanceolate, apex acute. Corolla pinkish purple to blue-violet; tube 3.5--4 mm; throat obscured by a projecting tuft of purple hairs; limb 6--9 mm wide; lobes obovate, deeply emarginate. Pin flowers: stamens at middle of corolla tube; style ca. as long as tube. Thrum flowers: stamens toward apex of corolla tube; style ca. 1 mm. Capsule cylindric, ca. as long as calyx. Fl. Jul.

SE Xizang (Mêdog Xian).

* Open stony hillsides, cliff edges; ca. 5000 m.