A vigorous climber with stems usually growing up to 3 m long, but occasionally reaching up to 7 m or more in height.

Primarily a weed of rainforests, closed forests, urban bushland, disturbed sites, roadsides, waste areas, waterways and forest margins in tropical and sub-tropical regions. It is also a potential weed of plantation crops.

a climbing plant with slender twining stems and broad heart-shaped leaves.

    there is a small ear-shaped leafy structure at the base of each leaf stalk.

    its unusual tubular flowers (up to 10 cm across) are cream and reddish-purple and have a broad heart-shaped opening.

    its cylindrical capsules (4-6 cm long) have a short projection at their tips and split open from the top when mature.

    these fruit contain numerous tear-shaped seeds.