Aconitum nutantiflorum Chang ex W. T. Wang

Caudex unknown. Stem ca. 1.5 m tall, many branched, basally spreading pubescent, apically retrorse pubescent, with leaves equally arranged along stem. Middle cauline leaves with petiole ca. 4 cm, glabrous; leaf blade pentagonal, 8.5--10 × ca. 12 cm, abaxially glabrous, adaxially sparsely appressed pubescent, 3-parted; central lobe rhombic, apex acuminate; lateral lobes obliquely flabellate, unequally 2-parted. Inflorescence terminal, ca. 20 cm, 7--12-flowered; rachis retrorse pubescent; proximal bracts leaflike, distal ones elliptic or lanceolate to narrowly linear. Pedicels decurved at apex, 2.5--5 cm, spreading pubescent, proximally with 2 bracteoles; bracteoles subulate, 2.5--3.5 × ca. 0.3 mm, glabrous. Sepals blue or blue-white; lower sepals ca. 1.4 cm; lateral sepals ca. 1.7 cm; upper sepal navicular, glabrous, lower margin 1.7--2.1 cm, slightly concave. Petals ca. 2.2 cm, glabrous; claw slightly geniculate at apex; lip 3--3.5 mm, apex slightly concave; spur subcircinate, ca. 2.5 mm. Stamens glabrous; filaments entire. Carpels 3(--5), glabrous. Follicles 1.4--1.7 cm. Seeds ca. 4 mm. Fl. Aug.

SE Xizang (Zayü Xian).

* Forests; ca. 3600 m.

Aconitum nutantiflorum là một loài thực vật có hoa trong họ Mao lương. Loài này được P.K.Chang ex W.T.Wang mô tả khoa học đầu tiên năm 1965.

垂花乌头（学名：Aconitum nutantiflorum）为毛茛科乌头属下的一个种。