Abutilon megapotamicum, Callianthe Mesopotamia or Abutilon vexillarium is also commonly known as Trailing Abutilon, Brazilian Bellflower, Flowering Maple or Chinese Lanterns. It is part of the Malvaceae family of plants. Abutilon megapotamicum is native to Brazil, Argentina, Uruguay.
It is a sub-tropical deciduous or partially evergreen shrub. It grows to 2.5m or 8ft. The leaves are heart-shaped and slightly three-lobbed. The flowers are yellow with a red base or calyx and have five petals almost looking like a Chinese lantern. The flowers are about 2in or 5cm across. It flowers from summer to the end of autumn.
Plant Abutilon megapotamicum in the sun or partial shade, in a sheltered location in moist but well-drained soil. Propagate by seed or by softwood cuttings. Watch out for whitefly and red spider mite, aphids, mealybugs, and scale insects especially, if you grow them indoors in the glasshouse, it could also be vulnerable to virus. Abutilon megapotamicum attracts butterflies and hummingbirds.