Description
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Perennial, stem twining, hollow, glabrous except for a band of hairs running along the internodes. Leaves 6.5-15 cm x 5-12.5 cm, broadly ovate to ovate-lanceolate, deeply cordate, acute to acuminate, margin often undulate, sparsely pubescent with short appressed hairs to glabrous above, puberulous on the nerves beneath, basal nerves 5-7, few small conical glands at the base of the midrib. Petiole 2.5-8.0 cm long. Many flowered cymes on 3-15 cm long, peduncle, arising singly at node, puberulous. Pedicel 1.2-1.3 cm long, slender puberulous. Bract up to 8 mm long. Calyx c. 4.5 mm long, lobed almost to the base, ciliate. Corolla white to yellowish-green, c. 6-8 mm long, divided nearly to the base, lobes pubscent within. Corona cupshaped, deeply 5-lobed, lobes oblong, obtuse bearing 5 small scales on the inner faces. Style apex conical, 2-lobed, slightly exserted beyond the stamens. Follicles 7.5-10 cm x 15 cm elliptic-lanceolate, smooth. Seeds 8-9 mm long, oval, brown, compressed; coma 2.5 cm long.
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Description
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Stems twining, puberulent along 1 side to uniformly puberulent, sometimes glabrescent. Leaves opposite; petiole 2.4-3.5(-8.5) cm, axillary stipulelike leaves sometimes present; leaf blade ovate, 4.5-11(-16) × 2.6-7(-11.5) cm, papery, puberulent, densely so on veins abaxially, base cordate with rounded sinus, apex acuminate; basal veins 5, lateral veins 2 or 3 pairs. Inflorescences racemelike, many flowered, to 23 cm; peduncle 4.5-15 cm. Pedicel 0.9-2.8 cm, puberulent. Sepals lanceolate, 2.2-5.2 × 0.8-2 mm, puberulent; basal glands 5. Corolla white, pale yellow, pink, or purple, rotate; tube short; lobes lanceolate to lanceolate-oblong, 5.5-8(-10) × 2-3 mm, coarsely pubescent to pilose inside. Corona very deeply 5-lobed, white; lobes much longer than gynostegium, elliptic, to ca. 4.5 mm, fleshy, obtuse, with narrowly triangular adaxial appendages. Stigma head conical. Follicles oblong-lanceolate, ca. 8 × 1 cm. Seeds ovate, truncate, ca. 6 × 3 mm; coma ca. 2.5 cm. Fl. Jun-Aug, fr. Aug-Dec. 2n = 22.
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Distribution
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Himalaya (Kashmir to Bhutan), Assam, China.
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Distribution
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Distribution: Pakistan (Hazara, Murree), Kashmir, India (Simla, Kumaon), Nepal, Sikkim.
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Distribution
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Sichuan, Xizang, Yunnan [Bhutan, India, Kashmir, Nepal, Pakistan].
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Elevation Range
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2000-3700 m
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Flower/Fruit
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Fl. Per.: July to August.
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Habitat
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Bushland on mountain slopes; 2800-3600 m.
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Synonym
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Cynanchum saccatum W. T. Wang ex Tsiang & P. T. Li; Diploglossum auriculatum (Royle ex Wight) Meisner; Endotropis auriculata (Royle ex Wight) Decaisne; Vincetoxicum auriculatum (Royle ex Wight) Kuntze.
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Vincetoxicum auriculatum
provided by wikipedia EN
Vincetoxicum auriculatum, synonym Cynanchum auriculatum,[1] is a species of climbing vine. Its Chinese name is niu pi xiao [ 牛皮消 ] (leather eater).[2] V. auriculatum flowers between June and August; fruiting from August all the way to December.[2]
Distribution and habitat
Vincetoxicum auriculatum is native to Asian temperate and tropical regions; found in China (in Sichuan, Xizang, and Yunnan provinces), Bhutan, Nepal, and the northern parts of Pakistan and India[3] (it is also native to Kashmir).[2] Its habitat is mountainous shrubland terrain, at elevations from 2800 to 3600 meters.[2]
Studies
Ethanol extracts derived from roots of V. auriculatum are being studied for use in anti-cancer medicine; one preliminary study found extracts to have some cytotoxic effects on certain human tumor cell lines. The tests were conducted, both in vitro and in vivo, on both human subjects, and mice.[4]
References
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Vincetoxicum auriculatum: Brief Summary
provided by wikipedia EN
Vincetoxicum auriculatum, synonym Cynanchum auriculatum, is a species of climbing vine. Its Chinese name is niu pi xiao [ 牛皮消 ] (leather eater). V. auriculatum flowers between June and August; fruiting from August all the way to December.
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