云南黄连 yun nan huang lian

Coptis teetoides C. Y. Cheng.

Petiole 8--19 cm, glabrous; leaf blade ovate-triangular, 6--12 × 5--9 cm, 3-sect, papery, abaxially glabrous, adaxially sparsely puberulous on veins, base cordate; lateral segments subsessile to petiolulate, shorter than central one, obliquely ovate, unequally parted; central segment petiolulate, ovate-rhombic, pinnately divided; segments 3--6 pairs, remote, margin acute serrate, apex attenuate. Scapes 15--25 cm tall, glabrous. Inflorescences 3--5-flowered; bracts elliptic, 3-parted or pinnately divided. Sepals 5, greenish yellow, elliptic, 7.5--8 × 2.5--3 mm., glabrous. Petals spatulate, 5.4--5.9 mm, glabrous, apex rounded to obtuse. Stamens 3--3.3 mm. Pistils 11--14. Follicles 7--9 mm, glabrous. 2n = 18*.

* Evergreen broad-leaved forests; 1500--2300 m. NW Yunnan (Gongshan Drung-Nu Zu Zizhixian), SE Xizang.

This species is used medicinally.