Leionema scopulinum, is an upright shrub with glossy, dark green, narrow leaves and yellow flowers from autumn to spring.
The mostly smooth leaves are narrowly elliptic to slightly lance shaped, tapering to the stalk, 24–65 mm (0.94–2.56 in) long, 4.5–10 mm (0.18–0.39 in) wide, smooth to minute teeth on the edges, notched or rounded at the apex, dark green and glossy on the upperside and duller underneath.
The triangular shaped sepals are 1–1.5 mm (0.039–0.059 in) long with smooth to star-shaped hairs.
[2][3][4] This species was first formally described in 2004 by Bryony M. Horton and Darren M. Crayn and the description was published in the journal Telopea.
[4][5] Leionema scopulinum has a restricted distribution only found in the Wollemi National Park in New South Wales growing in heath and woodland in shallow sandy soils.