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

64. Aconitum franchetii Finet & Gagnepain, Bull. Soc. Bot. France. 51: 510. 1904.

大渡乌头 da du wu tou

Caudex carrot-shaped, ca. 6 mm, ca. 1.2 cm in diam. Stem to 1.2 m, branched, sparsely retrorse and appressed pubescent, with leaves equally arranged along stem. Proximal cauline leaves withered at anthesis, middle ones slightly long petiolate; petiole 3--4 cm, sparsely retrorse pubescent; leaf blade cordate-pentagonal, ca. 7.5 × 8.5 cm, nearly glabrous or sparsely pubescent, 3-parted; central lobe rhombic; lateral lobes obliquely flabellate, unequally 2-fid. Inflorescence terminal, 10--35 cm, 7--20-flowered; rachis and pedicels retrorse or spreading pubescent, or intermixed with short glandular hairs, or glabrous; proximal bracts leaflike, shortly stipitate, distal ones linear, ca. 9 mm. Pedicels 1--10 cm, with 2 bracteoles at middle; bracteoles of proximal pedicels to 1.5 cm, 3-fid; others oblong to linear, 4--10 × 0.5--2 mm, nearly glabrous, undivided. Sepals blue, abaxially glabrous; lower sepals ca. 20 cm; lateral sepals ca. 2.1 cm; upper sepal galeate, 1.8--2.4 cm high, 1.9--2.3 cm from base to beak, external margin suberect or oblique, lower margin slightly oblique upward, suberect or slightly concave. Petals glabrous; claw erect or geniculate at apex; limb ca. 5 mm; spur short, beak curved or subcircinate. Stamens glabrous; filaments entire or 2-denticulate. Carpels 3 or 5, glabrous. Fl. Jul--Aug.

* Grassy slopes, forests; 3400--4100 m. Sichuan.

1 Rachis and pedicels spreading pubescent and intermixed shortly glandular pubescent   64c var. villosulum
+ Rachis and pedicels retrorse or appressed pubescent, or glabrous.   (2)
2 (1) Rachis and pedicels appressed pubescent, or glabrous   64e var. glabrescens
+ Rachis and pedicels retrorse pubescent.   (3)
3 (2) Upper sepal navicular-galeate or subnavicular, external margin oblique   64b var. subnaviculare
+ Upper sepal galeate, external margin suberect.   (4)
4 (3) Petaline claw not geniculate at apex   64a var. franchetii
+ Petaline claw geniculate at apex   (5)
5 (4) Sepals pubescent abaxially, petals sparsely pubescent   64f var. lasiocalyx
+ Sepals glabrous abaxially, petals glabrous   64d var. geniculatum


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