钩瓣乌头 gou ban wu tou

Caudex carrot-shaped or obconical, small, to 1.5 cm. Stem 13--36 cm tall, glabrous. Basal leaves 1--3, long petiolate; petiole 4--14 cm; leaf blade orbicular-pentagonal, 1--1.5 × 2.2--4 cm, 3-sect or -parted nearly to base; ultimate lobes narrowly ovate or lanceolate, 1.5--4 mm wide. Inflorescence 2- or 3-flowered; bracts broadly linear. Pedicels 1--5 cm, with 2 bracteoles at middle; bracteoles linear. Sepals blue-purple; lower sepals broadly elliptic, slightly oblique; lateral sepals 1.3--1.6 cm; upper sepal navicular-galeate, shortly beaked, lower margin suberect or slightly concave, 2--2.5 cm. Petals 9--10 mm, glabrous; claw narrowly hooklike at apex and decurved. Stamens pubescent; filaments entire. Carpels 5, densely spreading pubescent; persistent style glabrous, nearly 2-fid at apex. Fr. Aug--Sep.

* Grasslands; ca. 4000 m. NW Yunnan.