Stems annual, to 60 cm tall, branching and eventually arching over, covered with a white powdery film. Leaves lanceolate to 19 cm long, pronounced basal lobe, surface green, hairless; margins toothed. Flowers scarlet, petals lanceolate to 5 cm long.
Source: (1997). Begoniaceae. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.