错那獐牙菜 cuo na zhang ya cai

Perennials 5-7 cm tall. Taproot 7-10 mm in diam. Stems ascending, many, scapiform, cespitose, striate, simple, naked, puberulent along striae; caudex sheathed by blackish remains of old petioles. All leaves basal, in a rosette; petiole 5-6 cm; leaf blade oblong-spatulate, puberulent, base narrowed, margin ciliolate, apex obtuse to rounded, veins 3. Flowers solitary on naked scape, 4merous. Calyx lobes narrowly oblong, 8-10 mm, puberulent, apex obtuse; veins 3, indistinct. Corolla dark blue, 1.2-1.4 cm in diam., tube 1.5-2 mm; lobes lanceolate, 8-10 mm, puberulent, apex obtuse and erose. Nectaries blue, 1 per corolla lobe, orbicular, reduced to a gland patch without raised margin or fimbriae. Filaments blue, 5-6 mm; anthers yellow, ellipsoid, ca. 1.5 mm. Ovary ovoid-ellipsoid to ellipsoid, ca. 6 mm. Style indistinct; stigma lobes suborbicular. Fl. Aug.

* Hilltops; ca. 4600 m. Xizang (Cona Xian).