剑川乌头 jian chuan wu tou

Caudex carrot-shaped, ca. 4 cm, ca. 7 mm in diam. Stem 40--60 cm, densely pubescent or basally glabrous. Proximal cauline leaves crowded, long petiolate; petiole 6--12 cm, distal leaves shortly petiolate, pubescent; leaf blade broadly cordate or subreniform, to 4.5 × 7 cm, both surfaces glabrous, palmately 5-sect; segments subequal in size, 2- or 3-pinnately tenuisect; ultimate lobes linear, 0.5--2.5 mm wide, apex acute. Inflorescence terminal, ca. 16 cm, ca. 20-flowered; rachis and pedicels spreading yellow glandular pubescent and rarely curved white pubescent or sparsely villous; proximal bracts leaflike, distal ones linear-lanceolate. Pedicels 0.5--3 cm, with 2 bracteoles at middle; bracteoles lanceolate-linear. Sepals dark purple, abaxially pubescent; lower sepals ca. 1.2 cm; lateral sepals ca. 1.5 × 1.5 cm; upper sepal navicular, ca. 2 × 0.9 cm, with a short beak, decurved, lower margin concave. Petals ca. 2.7 cm; claw curved, sparsely pubescent; limb ca. 7 mm; lip smaller, slightly concave; spur incurved. Stamens pubescent; filaments entire, 5--7 mm. Carpels 5, densely yellow pubescent. Follicles ca. 1.2 cm; Seeds subovate. Fl. Sep.

* Scrub, grasslands; 3800--4100 m. NW and W Sichuan, NW Yunnan.