brilliant hop-bush

Dodonaea microzyga is a spreading, dioecious shrub that typically grows to a height of up to 0.5 m (1 ft 8 in). Its leaves are imparipinnate, 3–12 mm (0.12–0.47 in) long on a petiole 1.5–5 mm (0.059–0.197 in) long, with two to ten lance-shaped to broadly obovate leaflets 1.6–8 mm (0.063–0.315 in) long and 1–3 mm (0.039–0.118 in) wide. The leaflets have a rounded or toothed end and a wedge-shaped base, the end leaflet shorter and lobe-like. The flowers are arranged singly or in pairs, each flower on a pedicel 3.5–5 mm (0.14–0.20 in) long. The four sepals are egg-shaped, 18–2.6 mm (0.71–0.10 in) long but that fall off as the flowers develop. There are usually eight stamens and the ovary is covered with soft hairs. Flowering occurs from June to September and the fruit is an elliptic capsule 10–13.5 mm (0.39–0.53 in) long, 10–17.5 mm (0.39–0.69 in) wide and mostly glabrous with three, rarely four membranous wings 2.5–5 mm (0.098–0.197 in) wide.

Dodonaea microzyga var. acrolobata is endemic to Western Australia where it grows between Meekatharra, Lake Grace Balladonia and the Great Victoria Desert on sandy soil on plains, breakaways and rocky rises in the Avon Wheatbelt, Coolgardie, Great Victoria Desert, Mallee, Murchison and Yalgoo bioregions. The variety microzyga grows in arid habitats in open shrubland or woodland in stony rises and outcrops in the far north-west of New South Wales, southern parts of the Northern Territory, western Queensland, and is widely distributed in South Australia.