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

25. Aconitum spiripetalum Handel-Mazzetti, Acta Horti Gothob. 13: 91. 1939.

螺瓣乌头 luo ban wu tou

Caudex unknown. Stem 18--45(--70) cm tall, simple or branched, retrorse and appressed pubescent. Basal leaves 7--9, long petiolate; petiole 2.5--9.5 cm; leaf blade orbicular or orbicular-reniform, 2.2--5.2(--6.2) cm, 3-parted. Cauline leaves 1 or 2, usually shortly petiolate, smaller than basal leaves. Inflorescence terminal, 2--5-flowered; rachis densely retrorse pubescent; basal bracts leaflike or 3-fid, distal bracts linear. Pedicels 1--3.5 cm, retrorse white and spreading yellowish pubescent, with 2 bracteoles at middle or above; bracteoles linear, 2--7 mm. Sepals pale blue or dark purple, abaxially sparsely pubescent; lower sepals 1.2--1.5 cm; lateral sepals 1.4--1.8 cm; upper sepal navicular-galeate. Petals glabrous; claw slender, apex spirally curved; limb very short, ca. 1.5 mm; lip indistinct; spur subglobose, short. Stamens pubescent; filaments pubescent, entire. Carpels 5, sparsely spreading villous. Follicles ca. 1.5 cm. Seeds obovate, ca. 2.5 cm, smooth. Fl. Aug--Sep.

* Grassy slopes; 3600--4300 m. W Sichuan.


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