Abutilon megapotamicum or Callianthe megapotamica (trailing abutilon) is a species of Abutilon native to Argentina, Brazil and Uruguay. It is a shrub growing to 2.5 metres (8 ft 2 in) tall, with leaves 5–8 centimetres (2.0–3.1 in) long, ovate to shallowly three-lobed.
The flowers are orange-yellow with a red base, with five petals about 4 centimetres (1.6 in) long. It is a popular ornamental plant in subtropical gardens. They bloom for months from summer to frost, and they decorate the plant with a profusion of blossoms resembling Red Chinese lanterns.
Full sun and reflected heat exposure- part shade; low to moderate water. Best grown in evenly moist, rich, well drained soil. Appreciates afternoon shade in hottest climates. Perfect for beds and borders or containers. Many people enjoy this plant for the New Year Celebrations.