Callistemon pearsonii is a shrub

Shrub

A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 species in the family Myrtaceae

Myrtaceae

The Myrtaceae or Myrtle family are a family of dicotyledon plants, placed within the order Myrtales. Myrtle, clove, guava, feijoa, allspice, and eucalyptus belong here. All species are woody, with essential oils, and flower parts in multiples of four or five...

. It is native to the state of Queensland

Queensland

Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

 in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The species was first formally described by Roger David Spencer

Roger David Spencer

Roger David Spencer is an Australia horticultural botanist. was born at Alfreton, Derbyshire. He has an honours degree in botany from the University College of Wales, Aberystwyth, a Masters and Doctorate degrees from the University of Melbourne and a technical certificate in Gardening and Turf...

 and Peter Lumley in 1986 in Muelleria, based on plant material collected from Blackdown Tableland

Blackdown Tableland National Park

Blackdown Tableland is a national park in Central Queensland , 576 km northwest of Brisbane. The mountainous terrain of the tablelands provides a unique landscape featuring gorges, waterfalls and diverse vegetation....

. In his 2006 paper, New Combinations in Melaleuca for Australian Species of Callistemon (Myrtaceae), Lyn Craven, a research botanist from the Australian National Herbarium, proposed that the species should be renamed as Melaleuca pearsonii.