Fast growing evergreen tree. Leaves bipinnate. Leaflets ovate-lanceolate to about 5 cm long, glossy. Flowers yellow, 6-7.5 cm long, but not produced easily on plants in containers. Fruits linear, up to 40 cm long.
Generally grown as an indoor tub plant but can survive outdoors in a sheltered spot in Melbourne.
R. sinica 'China Doll' has a compact habit. Also R. sinica 'Kaprima' Plant Varieties Journal 5(4)5. [Crystal Doll]
R. gigantea (Blume) Miq. is occasionally listed and is from continental SE Asia and Malesia; it has a narrow mauve corolla 3.5-4.5 cm long while that of the former species is yellow. The leaflets are also larger than those of R. sinica.
Source: (2002). Bignoniaceae. In: . 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.