Tetrastigma nitens (F.Muell.) Planch.
Planchon, J.E. in Candolle, A.L.P.P. de & Candolle, A.C.P. de (1887) Monographiae Phanerogamarum 5 : 320.
Three-leaf Water Vine; Shining Grape; Vine, Three-leaf Water; Grape, Shining
Vine stem diameters to 15 cm recorded. Vascular rays obvious in the wood and bark of stem cross sections. Blaze marked by pale granular stripes and slightly darker fibrous stripes. Blaze turns pink on exposure. Stems often laterally flattened.
Tendrils 2-branched or simple (unbranched) attached to the stem opposite the petioles. Leaflet blades 5.5-16 x 2.5-9 cm, leaflet stalks about 0.3-0.5 cm long. Stalk of the middle leaflet longer than those of the lateral leaflets. 'Oil dots' elongated. Stipules caducous. Twig lenticels small and pale but quite prominent on young shoots.
Inflorescence a panicle of umbels. Male flowers: Flowers about 5-7 mm diam. Pedicels about 5 mm long. Calyx lobes very small or absent. Petals reflexed at anthesis, narrowly ovate, about 2.5-3 x 1-1.5 mm, apices hooded. Staminal filaments about 2-2.5 mm long. Anthers yellow. Disk flat, about 1.2 mm diam., surrounding a rudimentary ovary. Female flowers: Flowers about 4-6 mm diam. Calyx lobes small, rounded and indistinct. Petals recurved, about 2.5-4 x 1-2 mm, hooded at the apex. Staminodes four, about 0.5 mm long. Ovary conical, green, about 1-1.3 x 1.5-1.8 mm. Stigma consists of four rounded lobes. Ovules 2 per locule.
Cotyledons ovate, about 30-60 x 20-30 mm, +/- three veined at the base, petiole about 3-6 mm long. First pair of leaves trifoliolate, leaflets elliptic to obovate, margin with four to seven teeth on each side, midrib raised on the upper surface. At the tenth leaf stage: leaflet blades glabrous, +/- ovate to elliptic, about 10-12 x 5-6 mm, the stalk of the middle leaflet longer than those of the lateral leaflets, margins with four to six peg-like teeth on each side. Midrib raised on the upper surface. Stipules about 2-5 mm long, margins ciliate. 'Oil dots' often elongated. Simple (unbranched) leaf-opposed tendrils usually present. Seed germination time 25 to 36 days.