Leionema ambiens is a rare shrub growing in the Guyra district of New South Wales, Australia. It has a ROTAP listing of 3RC-. The habitat is near granite boulders, it grows to 2.5 metres tall. White flowers appear on cymes in the spring months, petals 4.5 mm long. Leaves are 6 to 10 cm long, 2.5 to 4 cm wide, elliptic, broad oblong or obovate in shape.