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

49. Thalictrum rostellatum J. D. Hooker & Thomson, Fl. Ind. 15. 1855.

小喙唐松草 xiao hui tang song cao

Plants 40--60 cm tall, glabrous. Stems branched. Basal and proximal cauline leaves withered at anthesis. Cauline leaf stipule margin entire; petiole 1--3 cm; leaf blade 3-ternate, 6--12 cm; petiolule slender, 0.6--1.8 mm; leaflet blade broadly ovate or orbicular, 0.8--1.7 × 0.8--1.7 cm, herbaceous, abaxially minutely puberulent, base subcordate, apex rounded or obtuse, 3-lobed; lobes acute at apex; veins flat on both surfaces. Inflorescence monochasial, few flowered. Pedicel slender, 3--12 mm, minutely puberulent. Sepals white, ovate or narrowly so, 2--3 mm. Stamens 8--12; filament filiform; anther oblong, ca. 1 mm, apex obtuse. Carpels 4--7; style hooked-curved, ca. 3 mm. Achene stipe 0.8--1 mm; body obliquely narrowly ovoid or cylindric, laterally compressed, ca. 7 × 1.2 mm; veins ca. 8, weak. Fl. May.

Forests, damp rocky ledges; 2500--3200 m. W Sichuan, S Xizang, NW Yunnan [Bhutan, NW India (Simla), Nepal, Sikkim].


 

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