Wiry twiner to several metres long, latex white. Leaf blade ovate, leathery, flat, up to 15 cm long and 7 cm wide, green with splashes of red, light-green and silver, hairless; margins corrugate, not recurved, same colour as rest of blade; venation penninerved, with 4 or 5 lateral veins; base cordate or rounded; tip acute or acuminate. Umbel positively geotropic, concave, of 1-10 flowers in tight ball. Corolla 13-20 mm wide, pink-yellow; lobes ovate, 6-7 mm long, 4-5 mm wide, more or less flat, shaggily papillose. Corona pink-red.

Malaysia, Thailand

Corrugate leaf margin.

Source: Forster, P.; Liddle, D.; Liddle, I. (2002). Hoya. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.