Climbing herb. Stem with internodes 5-6.5 cm long. LEAVES: Petiole 9-9.5 cm long, rather broadly alate, wings more or less flat and spreading, 0.8-0.9 cm across, inequilateral with the wider side apically auriculate, reaching to within 0.2 cm of base of blade; geniculum 0.3 cm long. Leaf blade two or more times longer than petiole, in vivo subcoriaceous, mostly elliptic or oblong, sometimes widest a little above or below middle (in juvenile shoots narrowly oblong-elliptic and only about half as large), to 2 1 cm long, 8.7 cm wide, (2. l-)2.4-2.8 times longer than wide, strongly inequilateral with one side 0.5-1.6 cm wider than other, base obtuse with narrower side more or less convex and wider side nearly straight in lower 3-4 cm then becoming conv.ex beyond (at least in sicco), apex obtuse and abruptly acuminate (3 cm), adaxially matte with concave midrib and scarcely visible lateral veins, abaxially with lateral veins weakly visible, without stronger (i.e., primary) laterals on either surface, all veins arising at angle of ca. 30°. INFLORESCENCE: unknown.