Melaleuca phellosa (A.S.George) Craven & R.D.Edwards Calothamnus phellosus is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia.

It is a tall, spreading shrub with needle-shaped, prickly leaves and bright red flowers with five stamen bundles.

Flowering occurs from September to November and is followed by fruits which are woody, flattened spherical capsules, 7–11 millimetres (0.3–0.4 in) long, often tightly packed together and which develop a corky bark.

[2] Calothamnus phellosus was first formally described in 2010 by Alex George in Nuytsia from a specimen found in the north of the Murchison River near Eurardy.

[2][3] The specific epithet (phellosus) is said to be Greek, meaning "corky", referring to the outer surface of the fruit of this species.