Roots fibrous. Stems red to 1 m tall, thin and fleshy. Leaves to 2 cm long, in two dense ranks, glossy, dark green, succulent. Margin with few teeth. Flowers white, quite small, in dense clusters. Has the smallest leaves of any Begonia.
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.