云岭乌头 yun ling wu tou

Caudex obconical, ca. 5 cm, ca. 1.2 cm in diam. Stem ca. 60 cm, simple, sparsely retrorse pubescent, with leaves equally arranged along stem. Proximal cauline leaves withered at anthesis; middle ones long petiolate; petiole 3--5.5 cm, glabrous; leaf blade pentagonal, 5.5--6.5 × 5--8 cm, adaxially sparsely pubescent, base cordate, 3-parted; central lobe rhombic, apex acuminate, subpinnately incised-lobed; lateral lobes flabellate, unequally 2-fid. Inflorescence ca. 10 cm, sparsely 6-flowered; rachis and pedicels glabrous; bracts leaflike. Pedicels 2--5 cm, with 2 bracteoles at apex; bracteoles 3--5 × ca. 1 mm, glabrous. Sepals blue; lower sepals obovate; lateral sepals broadly obovate, ca. 2.2 × 2.2 cm, abaxially glabrous, adaxially sparsely pubescent; upper sepal navicular, ca. 1.5 cm, 2.5--3 cm from base to beak, glabrous, lower margin slightly erect. Petals glabrous; claw geniculate at apex; limb ca. 1.2 cm; lip ca. 4 mm, apex slightly concave; spur curved, ca. 2.5 mm. Stamens glabrous; filaments 2-denticulate. Carpels 5, glabrous.

* Alpine grasslands; ca. 4100 m. NW Yunnan (Weixi Lisu Zu Zizhixian).