尖萼乌头 jian e wu tou

Caudex carrot-shaped, ca. 6 cm, ca. 7 mm in diam. Stem 75--120 cm tall, branched, apically and inflorescence densely curved white pubescent, or spreading yellowish glandular pubescent or pubescent. Leaf petiole 1.5--10 cm; leaf blade orbicular-pentagonal, 4--8 × 4.5--12 cm, palmately sect; ultimate lobes narrowly lanceolate or linear, both surfaces pubescent, adaxially veins concave. Inflorescence terminal, to 45 cm, many flowered; proximal bracts 3--5-fid, distal ones lanceolate, unlobed. Pedicels 1--11.5 cm, distally with 2 bracteoles; bracteoles linear. Sepals purple-blue, abaxially sparsely pubescent; lower sepals lanceolate; upper sepal navicular-galeate, 8--10 mm. Petals ca. 1.5 cm, glabrous; claw geniculate at apex; lip oblong; spur incurved. Stamens glabrous; filaments entire. Carpels 5, sericeous-pubescent. Fl. Aug.

* Grasslands, forest margins, grassy slopes; 4000--4100 m. NW Yunnan (Dêqên Xian).

The combination Aconitum ouvrardianum Handel-Mazzetti var. acutiusculum (Fletcher & Lauener) Q. E. Yang & Y. Luo (Novon 14: 148. 2004) appeared after publication of the FOC treatment.