Wiry twiner to several metres long, latex white. Leaf blade lanceolate to ovate, fleshy, flat, up to 20 cm long and 8 cm wide, dark green, silver flecking absent, hairless; margins entire, not recurved, same colour as rest of blade; venation penninerved, with 5 or 6 lateral veins; base cordate; tip acute to acuminate. Umbel positively geotropic, convex, of 4-12 flowers in loose ball. Corolla 55-80 mm wide,maroon or red-purple, often with white centre; lobes lanceolate-ovate to triangular, 20-25 mm long,19-23 mm wide, flattish to inflexed, hairless.corona red-purple.

Australia

Corolla 55-80 mm wide, maroon to red-purple.

Various clones, listed by provenance, are also cultivated.

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.