墨脱乌头 mo tuo wu tou

Caudex carrot-shaped, to 6 cm, ca. 1.4 cm in diam. Stem 1--1.5 m tall, simple, apically spreading pubescent, many leaved. Leaf blade ovate, ca. 12 × 12 cm, subglabrous, base cordate, 3-parted; central lobe ovate-rhombic, 3-lobed to middle, margin with irregular teeth; lateral lobes obliquely ovate, unequally 2-parted slightly beyond middle. Inflorescence conical, to 30 cm, many flowered; rachis and pedicels densely spreading yellow pubescent or glabrous; proximal bracts leaflike, distal ones ovate or lanceolate. Pedicels 0.5--9 cm, with 2 bracteoles above middle; bracteoles lanceolate-linear or linear, sometimes leaflike. Sepals blue-purple, adaxially glabrous; lateral sepals 1.4--1.5 cm; upper sepal galeate, 2.3--3 cm high, beak ca. 4 mm, 2.4--3 cm from base to beak, lower margin suberect. Petals glabrous, or sparsely yellowish pubescent, ca. 2 cm; claw suberect; lip slightly concave at apex; spur subcircinate, ca. 3 mm. Stamens glabrous; filaments 2-denticulate. Carpels 3--5, glabrous. Fl. Aug.

* Scrub, grasslands, grassy slopes; 3000--4100 m. E Xizang.