太白金腰 tai bai jin yao

Herbs 7-11 cm tall. Stolons arising from proximal leaf axils. Stems brown pilose. Basal leaves absent. Cauline leaves alternate; petiole 0.9-1.4 cm, brown papillose and pilose adaxially and at axil; leaf blade subflabellate to nearly semiorbicular, 0.4-1 × 0.6-1.5 cm, abaxially glabrous, adaxially brown papillose and pilose near base, base broadly cuneate to truncate, margin shallowly 7-9-dentate (teeth retuse at apex), apex obtuse. Cyme 2- or 3-flowered; branches glabrous; bracteal leaves with petiole 1.5-3 mm, adaxially brown pilose, brown papillose and pilose at axil, leaf blade flabellate to nearly semiorbicular, 0.6-1.2 × 0.7-1.5 cm, abaxially glabrous, adaxially brown pilose near base, margin shallowly 3-9-dentate (teeth retuse at apex), apex obtuse. Flowers ca. 5 mm in diam.; pedicel barely 0.5 mm. Sepals spreading, broadly ovate to orbicular, 1.5-2 × 1.9-2 mm, adaxially with a transverse line of brown papillae, apex obtuse or acute. Stamens 8; filaments ca. 0.4 mm. Ovary subinferior; styles ca. 0.3 mm. Disc obsolete. Capsule ca. 3 mm, apex subtruncate, retuse; carpels subequal; rostrums ca. 0.5 mm. Seeds dark brown, subovoid, ca. 0.8 mm, tuberculate. Fl. and fr. Jun-Aug.

* Ravines; ca. 2100 m. S Shaanxi (Taibai Shan).