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

171. Aconitum tenuicaule W. T. Wang, Fl. Reipubl. Popularis Sin. 27: 610. 1979.

细茎乌头 xi jing wu tou

Caudex obconical or narrowly obterete, 1.3--2 cm, 4--6 mm in diam. Stem red-purple, 17--21 cm, ca. 2.5 mm in diam., simple, spreading pubescent. Proximal cauline leaves withered at anthesis, distal ones ca. 4, with petiole 0.8--4 cm; leaf blade cordate-pentagonal, 1.7--2.2 × 1.7--4 cm, abaxially glabrous, adaxially sparsely appressed pubescent, palmately 3-sect; segments 2- or 3-sect, ultimate lobes linear, ca. 1 mm wide. Inflorescence terminal, 1--4 cm, 3--7-flowered; rachis and pedicels densely yellowish pubescent; bracts leaflike. Pedicel 5--11 mm, proximally with 2 bracteoles; bracteoles subulate or narrowly linear, 3--5 mm. Sepals deep purple-blue, abaxially glabrous; lower sepals suboblong, ca. 7 mm; lateral sepals obliquely broadly obovate, ca. 1.1 cm; upper sepal navicular-galeate or navicular, from base to beak 1.3--1.5 cm, lower margin slightly concave. Petals glabrous; limb ca. 6.5 mm; lip ca. 3.5 mm; spur oblique upward, ca. 1.2 mm, subglobose. Stamens glabrous; filaments entire. Carpels 4 or 5, proximally sparsely pubescent, elsewhere glabrous. Fl. Aug.

* Alpine grasslands; ca. 4000 m. NW Yunnan (Dêqên Xian).


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