Wiry twiner to several metres long, latex white. Leaf blade elliptic to ovate, leathery, flat, up to 14 cm long and 4.5 cm wide, green, silver flecking absent, hairless; margins entire, not recurved, same colour as rest of blade; venation penninerved, with 4 lateral veins; base cuneate; tip acute to acuminate. Umbel positively geotropic, concave, of 10-20 flowers in tight ball. Corolla 10-15 mm wide, pale yellow to yellow-pink; lobes ovate, 5-5.5 mm long, 4.5-5 mm wide, slightly reflexed, shortly papillose. Corona yellow-pink. [H. sp. Mt Gallego]

Solomon Islands

Leaf blade with 4 lateral veins; corolla yellow to yellow-pink.

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.