Actaea yunnanensis (P. K. Hsiao) J. Compton.

Rhizome robust, gray-brown, with many fibrous roots. Stems 40--90(--140) cm tall, basally sparsely pubescent, apically densely pubescent. Proximal and middle cauline leaves 3 × ternately pinnate, long petiolate; petiole 5.5--17 cm, pubescent; leaf blade triangular, 12--40 × 12--40 cm, papery; terminal leaflet ovate or broadly rhombic, 2--3.7 × 1.5--3.2 cm, undivided to 3-parted, margin irregularly serrate; lateral leaflets obliquely ovate, adaxially pubescent. Distal cauline leaves 1 or 2 × ternate. Inflorescence racemose, 5--13 cm, usually unbranched, or sometimes 1--3-branched below; rachis and pedicels gray glandular pubescent; bracts linear-lanceolate or linear, 5--14 × 1--2.5 mm. Pedicel 1--4 mm, sometimes nearly absent. Sepals 4 or 5, broadly elliptic or obovate, 3--4.5 × 2.5--3.2 mm. Petals elliptic or suborbicular, 3.7--5 × 3--4 mm, apex white, submembranous, 2-lobed, truncate. Filaments to 8 mm; anthers ovate-orbicular, 0.6--1 mm. Carpels 3--5, densely gray pubescent, shortly stalked. Follicles narrowly obovate, 1.1--1.5 cm × 3--5 mm, stalk 1--3 mm, appressed pubescent. Seeds 4 or 5, ca. 3 mm, with membranous scaly wings all around. Fl. Jul, fr. Sep. 2n = 16*.

* Forest margins, grassy slopes; 2900--4100 m. NW Yunnan.