Acacia pygmaea

The erect single-stemmed shrub typically grows to a height of 0.3 to 0.5 metres (1.0 to 1.6 ft).

The dwarf subshrub has prominently ribbed and glabrous branchlets with shallowly triangular stipules with a length of around 0.5 mm (0.020 in).

[2] It blooms from October to March and produces white-cream flowers[3] that age to an orange colour.

[2] It is native to a small area in the Wheatbelt region of Western Australia where it is commonly found in crevices at the summit of ridges growing in laterite based soils.

[3] It has a limited range around Wongan Hills where it is situated along three adjacent ridges around Mount Matilda and Mount O'Brien across a length of about 8 km (5.0 mi) with a few populations and a total number of 129 individual plants recorded in 1997.