Sophora prostrata is an evergreen, medium sized, shrub reaching 6 ft (1.8 m) or more, which can also be prostrate in habit. The stiff branches zigzag to give a tightly interlaced bush. The leaves are typical for the pea family, with 2–8 pairs of tiny leaflets. The flowers are yellow to orange and up to 1 in (2.5 cm) long.
Sophora prostrata is found in scrub in lowland and mountain areas, from Marlborough to south Canterbury, South Island, New Zealand. It is fairly hardy in the UK.