Wiry twiner to several metres long, latex white. Leaf blade broad-ovate, succulent, flat, up to 12 cm long and 9 cm wide, dark green, silver flecking absent, hairless; margins entire, not recurved, same colour as rest of blade; venation palminerved, with 5 veins from base; base cordate to rounded; tip acute. Umbel negatively geotropic, convex, of 10-30 flowers in tight ball. Corolla 13-15 mm wide, cream; lobes lanceolate-ovate, about 6 mm long and 4.5 mm wide, strongly reflexed, hairless. Corona cream. [H. sp. Chiang Mai]

Thailand

The identity of this plant is open to debate and those in cultivation may be referable to H. latifolia G. Don.

Leaf blade 5-nerved from base; corona cream.

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.