类乌齐乌头 lei wu qi wu tou

Caudex carrot-shaped, 3.5--7 cm, ca. 1 cm in diam. Stem ca. 45 cm tall, simple or 1-branched, glabrous, with leaves sparsely arranged along stem. Middle cauline leaves with petiole 2.6--4 cm, glabrous; leaf blade cordate-pentagonal, ca. 4 × 6 cm, papery, 3-sect; segments dissected, ultimate lobes linear. Inflorescence 6--11 cm, densely flowered; rachis and pedicels retrorse pubescent; bracts leaflike to lanceolate. Proximal pedicels to 6 mm, distal ones shorter, with 2 bracteoles contiguous to flower, bracteoles linear. Sepals blue, glabrous; lower sepals broadly lanceolate or suborbicular, ca. 1 cm; lateral sepals obovate, 1.2--1.7 cm; upper sepal falcate-navicular or subfalcate, 1.8--2.5 cm from base to beak. Petals glabrous; limb ca. 0.8 mm, abaxially turgid; lip ca. 4.5 mm, 2-lobed; spur short, ca. 0.8 mm. Carpels 5, glabrous. Fl. Aug.

* About 4500 m. Xizang (Riwoqê Xian).