狭叶齿缘草 xia ye chi yuan cao

Herbs perennial, cushionlike, 6-10 mm tall. Stems cespitose, pilose, with persistent withered leaves and leaf bases. Petiole of basal leaves 1-2.5 cm; leaf blade narrowly elliptic, 5-15 × 3-5 cm, spreading white pilose, apex short acuminate; stem leaves sessile. Inflorescences axillary or extra-axillary, 1-flowered; upper inflorescences 3-5-flowered. Pedicel 3-5 mm. Calyx lobes erect to ascending, linear to narrowly elliptic, 2-2.5 × ca. 1 mm, with appressed and numerous long ciliate hairs along margin. Corolla blue, campanulate-rotate; tube ca. 2 mm; appendages cordate; limb ca. 6 mm wide; lobes elliptic, ca. 2.5 mm. Stamens inserted below middle in corolla tube; anthers suborbicular, ca. 0.5 mm. Nutlets dorsiventrally compressed, ca. 2 × 1 mm excluding marginal prickles, adaxially keeled; abaxially ovate, sparsely pubescent, marginal rib narrowly winged, wings with unequal prickles along margin, prickles not barbed; attachment scar at middle adaxially. Fl. and fr. Jun-Aug.

* Ridges, on rocks. Xizang.