Tetrastigma pubinerve

Description

Lianas,woody.Branchlets terete,with longitudinal ridges,transversely corrugated when dry,pubescent,then glabrescent;tendrils unbranched.Leaves pedately 5-foliolate;petiole 4-10.5(-15) cm;central petiolule 1-2.5 cm,petiolules of lateral leaflet complex 1-2.5 cm,lateral petiolules 0.5-2 cm,transversely corrugated when dry,sparsely pubescent,then glabrescent;leaflets only pubescent abaxially on veins,then glabrescent,lateral veins 7-9 pairs,veinlets raised abaxially;central leaflet elliptic or elliptic-lanceolate,12-25 × 4-7 cm,base broadly cuneate,margin 6-8-toothed on each side,apex acute or acuminate;lateral leaflets ovate-lanceolate or ovate-elliptic,6-20 × 2.5-7 cm,base cuneate or subrounded,margin 4-7-toothed on each side,apex acute,acuminate,or obtuse.Inflorescence umbelliform,axillary,with nodes and bracts at lower portion;peduncle 1.3-2 cm,pubescent.Pedicel (2-)3-4 mm,pubescent.Buds obovoid,2.5-3.5 mm,apex subtruncate.Calyx shallow and saucer-shaped,papillose,teeth inconspicuous.Petals elliptic,2-3 mm,apex corniculate,papillose.Anthers yellow,elliptic.Disk inconspicuous and annular in female flowers.Ovary ovoid,lower part of ovary adnate to disk;style inconspicuous;stigma 4-lobed.Berry globose,1-1.2 cm in diam.,2(or 3)-seeded.Seeds obovoid,base sharp,apex retuse,ventral holes furrowed upward from middle to apex.Fl.Jun,fr.Aug-Dec.