A small, upright or occasionally twining shrub, usually < 50 centimetres in height. Often inconspicuous when not flowering. Leaves are narrow and usually < 5 cm long. They may be toothed, particularly towards the tips. Flowers are large, blue and carried in clusters of 2 or more. Larger plants produce spectacular floral displays. Flowers are followed by green, waxy pods which become dry and brown at maturity. Each pod contains numerous dark seeds. The name ‘finger flower’ refers to the finger-like yellow stamens.