Abutilon megapotamicum or Callianthe megapotamica (trailing abutilon) is a species of Abutilon native to Argentina, Brazil and Uruguay. It is a shrub growing to tall, with leaves long, ovate to shallowly three-lobed. The flowers are orange-yellow with a red base, with five petals about 4 cm long.

It is a popular ornamental plant in subtropical gardens or temperate gardens that experience mild winters. They bloom for months from summer to frost, and they decorate the plant with a profusion of blossoms resembling Chinese lanterns. It has gained the Royal Horticultural Society´s Award of Garden Merit.

They are also known as flowering maple, Chinese lantern and parlour maple, in addition to trailing abutilon.