毛瓣乌头 mao ban wu tou

Caudex unknown. Stem ca. 40 cm, branched above base, spreading pubescent. Proximal cauline leaves withered at anthesis, and middle ones with petiole ca. 3 cm; leaf blade pentagonal, ca. 5 × 8 cm, papery, abaxially sparsely pubescent at veins, adaxially sparsely pubescent, base cordate, 3-sect; central segment broadly rhombic, apex acuminate, subpinnately parted, ultimate lobes linear or narrowly ovate; lateral segments obliquely flabellate, unequally 2-parted nearly to base. Inflorescence terminal, ca. 10 cm, many flowered; rachis and pedicels densely spreading pubescent; proximal bracts leaflike, distal ones lanceolate-linear. Pedicels 2--20 mm, with 2 bracteoles at middle; bracteoles linear, ca. 6 mm, pubescent. Sepals broadly obovate, ca. 1.1 × 1.1 cm; lower sepals obliquely elliptic or oblong, ca. 1 × 0.3--0.5 cm. Petals ca. 1.3 cm; claw ca. 1 cm, upper part pubescent; limb ca. 6 mm; lip ca. 2.5 mm, sparsely pubescent at margin, 2-lobed at apex; spur ca. 1 mm. Stamens glabrous; filaments entire. Carpels 5, glabrous. Fl. Aug.

* Scrub; ca. 4200 m. W Sichuan (Yajiang Xian).