拉萨玄参 la sa xuan shen

Perennials, ca. 15 cm tall, glandular hairy throughout except on corollas, stamens, and pistils. Rhizomes ca. 9 mm in diam. Stems several, cespitose, branched apically and branches usually sterile. Leaves on lower nodes 1 or 2; petiole 2-3 mm; leaf blade scalelike. Stem leaves sessile, ovate to ovate-orbicular, 1.7-4.5 X 1-2.5 cm, base rounded to subtruncate, margin entire or rarely weakly serrate. Thyrses terminal, very short; cymes 4-flowered, in pairs; peduncle ca. 1.2 cm. Pedicel 2-3 mm. Calyx ca. 5 mm, parted almost to base; lobes linear-oblong, apex obtuse. Corolla green-yellow, urceolate, ca. 1.1 cm, glabrous; lower lip ca. 2 mm, upper lip ca. 3.8 mm, lobes not overlapping and ca. 5 mm wide. Stamens slightly exserted, glabrous; staminode clavate. Ovary ovoid, apex gradually tapering. Style ca. 8.5 mm, glabrous. Fl. Jun-Aug.

* Rocky terrain; ca. 4600 m. C Xizang.