Tetrastigma delavayi Gagnep.

Lianas, woody. Stem tuberculate. Branchlets terete, with longitudinal ridges and distinct lenticels, glabrous; tendrils bifurcate. Leaves pedately 7- or 8-foliolate; petiole 3-10(-18) cm; central petiolule 0.8-2 cm, petiolules of lateral leaflet complex usually ca. as long as that of central petiolule, lateral petiolules very short or lateral leaflets sessile, glabrous; central leaflet obovate-elliptic or lanceolate, 8-15(-21) × 2-7 cm, lateral leaflets 2.5-15 cm, glabrous, lateral veins 5-9 pairs, veinlets inconspicuous, margin 5-15-toothed on each side. Inflorescence umbelliform, axillary, or leaf-opposed or pseudoterminal on lateral branches, 4-13 cm; peduncle 5-8 cm, pubescent. Pedicel 1-3 mm, pilose. Petals elliptic or oval, 1.3-1.7 mm, apex galeate, glabrous. Stamens 4; filaments filiform, longer than pistil in male flowers; anthers yellow, oval. Disk developed either in female or male flowers, 4-lobed. Lower part of ovary adnate to disk; style inconspicuous; stigma expanded, 4-lobed. Berry purple at maturity, spheroid, 0.8-1.5 cm in diam., 3- or 4-seeded. Seeds obovoid-triangular, base attenuate to rostrum, apex retuse. Fl. Jun-Jul, fr. Oct-Mar.

Guangxi, Guizhou, Yunnan [Myanmar, Vietnam].

Forests or shrublands in valleys; 1000-2500 m.

Tetrastigma delavayi f. majus W. T. Wang.

Tetrastigma delavayi là một loài thực vật hai lá mầm trong họ Nho. Loài này được Gagnep. miêu tả khoa học đầu tiên năm 1911.

七小叶崖爬藤（学名：Tetrastigma delavayi）为葡萄科崖爬藤属的植物。分布于越南、缅甸以及中国大陆的贵州、广西、云南等地，生长于海拔1,000米至2,500米的地区，多生在山谷林中以及灌丛中，目前尚未由人工引种栽培。