Citrus australasica, the Australian finger lime or caviar lime, is a thorny understorey shrub or small tree of lowland subtropical rainforest and rainforest in the coastal border region of Queensland and New South Wales, Australia.
It has edible fruits which are under development as a potential new commercial crop. The plant is 2–7 m (6 ft 7 in–23 ft 0 in) in height. Leaves are small, 1–6 cm (0.39–2.36 in) long and 3–25 mm (0.12–0.98 in) wide, glabrous, with a notched tip and crenate towards the apex. Flowers are white with petals 6–9 mm (0.24–0.35 in) long. The fruit is cylindrical, 4–8 cm (1.6–3.1 in) long, sometimes slightly curved, coming in different colours, including pink and green.