木里乌头 mu li wu tou

Caudex carrot-shaped, to 7 cm, ca. 1 cm in diam. Stem ca. 30 cm tall, simple or shortly 1-branched, with inflorescence spreading yellow puberulent. Lowest cauline leaves withered at anthesis, long petiolate; petiole 7--15 cm, base sheathed; leaf blade pentagonal, 2--3.5 × 4--5 cm, adaxially pubescent, base cordate, 3-parted; central lobe rhombic, apex acute, 3-lobed; lateral lobes obliquely flabellate, indistinctly 3-lobed. Inflorescence 8--14 cm, 4--7-flowered; rachis and pedicels spreading yellow puberulent, or appressed pubescent; bracts leaflike, proximal ones long stipitate, distal ones becoming short. Proximal pedicels to 5 cm, distal ones ca. 1.5 cm, with 2 bracteoles bordering flowers; bracteoles leaflike, shortly stipitate. Sepals yellowish or greenish, adaxially and marginally hispid; lower sepals narrowly ovate; lateral sepals obliquely broadly ovate, to 1.5 cm; upper sepal navicular, with a beak, lower margin slightly concave, ca. 1.8 cm. Petals glabrous or pubescent; claw geniculate at apex; limb short; lip narrowly spatulate; spur incurved, globose or subpocket-shaped. Stamens glabrous; filaments entire. Carpels 5, glabrous or pubescent.

* Alpine grasslands, mountains; 4000--4600 m. SW Sichuan, ?Yunnan.