Micromyrtus hexamera is a slender shrub that typically grows up to 2 m (6 ft 7 in) high and has many drooping branches.

Flowering has been recorded in most months, with a peak in August and September, and the fruit contains a single seed.

[2][3][4] This species was first formally described in 1901 by Joseph Maiden Ernst Betche who gave it the name Thryptomene hexamera in the Proceedings of the Linnean Society of New South Wales.

[5] In 1916 they transferred the species to the genus Micromyrtus as M. hexamera in A Census of New South Wales Plants.

[6] This species of micromyrtus grows in heath or shrubland near Cunnamulla and Charleville in Queensland and near Bourke, mainly between the Warrego and Darling Rivers, in northern New South Wales.