It has an upright habit, dark green, narrow leaves and clusters of white flowers in spring.

The yellowish-creamy calyx lobes are wide-triangular, smooth, petals about 5 mm (0.20 in) long and dotted with glands.

[2][3] The species was first formally described in 1884 by Ferdinand von Mueller who gave it the name Eriostemon coxii and the description was published in The Australasian Chemist and Druggist.

[5][6] The specific epithet (coxii) honours James Charles Cox a medical practitioner of Sydney for promoting "scientific objects in the neighbouring elder colony".

[4] This species grows in forests, brushland, near water courses and ridges from Morton National Park to the Tuross River area, mostly in the Budawang Range in southern New South Wales.