Scandent liana to 20 m high. Leaf blade elliptic to oblong, up to 9 cm long and 6 cm wide; upper surface glossy green, glabrous; lower surface pale green, glabrous; tip long-pointed, obtuse or rounded; base obtuse to cordate. Flowers 3.6-6 cm wide at mouth; corolla yellow, lobes obovate, 18-30 mm long. Fruit 8-20 cm long. [Mandevilla 'Sun Dial'; Urechites lutea (L.) Britton]

USA, W Indies

Source: Forster, P. (2002). Apocynaceae. 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.