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FOC | Family List | FOC Vol. 6 | Ranunculaceae | Aconitum

90. Aconitum contortum Finet & Gagnepain, Bull. Soc. Bot. France. 51: 506. 1904.

苍山乌头 cang shan wu tou

Caudex carrot-shaped, 5--9 cm, 1.1--1.9 cm in diam. Stem erect or apically twining, 45--85 cm tall, apically branched, retrorse pubescent, or becoming glabrous, with leaves equally arranged along stem. Proximal cauline leaves withered at anthesis; middle ones long petiolate; petiole sparsely retrorse pubescent; leaf blade pentagonal, 4.5--7.6 × 8--10 cm, both surfaces sparsely pubescent or abaxially nearly glabrous, 3-sect; central segment rhombic; lateral segments obliquely flabellate, unequally 2-parted. Inflorescence 2--5-flowered; rachis retrorse pubescent; bracts leaflike. Pedicels oblique upward, 2.2--4 cm, glabrous, with 2 bracteoles at middle or above; bracteoles oblong, obovate-oblong, or narrowly obovate, 5--6 × 1.6--3 mm. Sepals blue-purple, abaxially glabrous; lower sepals ca. 1.7 cm; lateral sepals ca. 1.8 cm; upper sepal ca. 2.1 cm, shortly beaked, lower margin oblique upward, suberect, ca. 2 cm. Petals glabrous; lip ca. 3.5 mm, slightly concave; spur incurved, globose, ca. 1.5 mm. Stamens glabrous; filaments usually 2-denticulate, rarely entire. Carpels 3--5, glabrous. Follicles 1.4--1.8 cm. Seeds ca. 3 mm. Fl. Sep--Oct. 2n = 16*.

* Mountains; ca. 3400 m. NW Yunnan (Dali Xian, Yunlong Xian).


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