This antler orchid occurs in northern Australia, New Guinea and Indonesia.

Dendrobium mirbelianum is an epiphytic or lithophytic herb with cylindrical, dark blackish brown pseudobulbs 0.2–1.0 m (0.7–3 ft) long and 20–30 mm (0.8–1 in) wide and is leafy in its upper half.

[2][3][4][5] Dendrobium mirbelianum was first formally described in 1829 by Charles Gaudichaud-Beaupré in his Voyage Autour du Monde ... sur les Corvettes de S.M.

[6][7] The specific epithet (mirbelianum) honours the French botanist and politician Charles-François Brisseau de Mirbel.

[6] The dark-stemmed antler orchid grows in trees, especially mangroves, in coastal swamps and sometimes on rocks.