Leionema hillebrandii, commonly known as Mount Lofty phebalium,[2] is a perennial, woody shrub endemic to South Australia.

Leionema hillebrandii is a small straggly, perennial shrub to 30–60 cm (12–24 in) high with smooth greenish-brown to red, thin, terete branchlets sparsely covered with star shaped hairs.

The fruit is a light brown, 2-4 segmented egg-shaped capsule, 4 mm (0.16 in) long, rounded at the apex with a beak.

[5][6] The specific epithet (hillebrandii) was named in honour of Dr. Wilhelm Hillebrand a friend of Baron von Mueller.

[7] This species is found along rocky waterways from Mount Lofty to Tanunda in South Australia.