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FOC | Family List | FOC Vol. 12 | Vitaceae | Yua

1. Yua thomsonii (M. A. Lawson) C. L. Li, Acta Bot. Yunnan. 12: 5. 1990.

俞藤 yu teng

Branchlets brown, terete; young branches slightly ridged; tendrils bifurcate. Leaves papery, palmately 5-foliolate; petiole 2.5-6 cm; leaflets lanceolate or obovate-lanceolate, 2.5-7 × 1.5-3 cm, abaxially usually glaucous, sometimes pubescent on veins, veinlets conspicuous but not raised, lateral veins 4-6 pairs, base cuneate, margin with 4-7 fine, sharp teeth on each side, apex acuminate or caudate-acuminate. Compound dichasium leaf-opposed. Petals (4 or)5, 3-3.5 mm. Stamens (4 or)5; filaments ca. 2.5 mm; anthers elliptic, ca. 1.5 mm. Pistil ca. 3 mm; style slender. Berry black-purple, 1-1.3 cm in diam. Seed 5-6 × ca. 4 mm, apex slightly retuse. Fl. Apr-Jun, fr. Jul-Oct.

Forests on hillsides, on trees, hillsides, valleys, disturbed areas; 200-2700 m. Anhui, SW Fujian, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [India, Nepal].

1 Branchlets, petioles, and peduncles glabrous; leaflets abaxially glabrous or sparsely pubescent on veins.   1a var. thomsonii
+ Leaflets pubescent at least abaxially on veins.   1b var. glaucescens


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