General Description:

Callistemon is a genus of around 50 species, all of which are found naturally only in Australia.  Some authorities now include Callistemon in the related genus Melaleuca, but this classification is not universally accepted (see footnote box). Numerous named cultivars of Callistemon are available.

Callistemon pinifolius is usually an an easily identified species because of its very narrow leaves, which are quite distinctive in comparison to the broader foliage of most other members of the genus.

This species is a small to medium shrub rarely exceeding 1.5 metres in height. The brushes are usually green in colour but red flowered forms are sometimes seen in the wild and may appear in cultivation as chance seedlings. Flowering occurs in spring. C.pinifolius has some similarity with C.linearis (which has red flowers and slightly wider leaves) and sometimes occurs in the same locations as that species.

C.pinifolius is reasonably common in cultivation and seems more resistant to attacks by sawfly larvae than the broader leafed species. The plant responds to annual fertilising after flowering and may be pruned severely if necessary. Many callistemons can tolerate less than perfect drainage but usually perform best in gardens with reasonable drainage and regular availability of water.

Propagation is easy from both seed and cuttings.

Callistemon or Melaleuca?
A paper by Lyn Craven of the Australian National Herbarium (Novon 16 468-475; December 2006 “New Combinations in Melaleuca for Australian Species of Callistemon (Myrtaceae)“) argues that the differences between the genera Callistemon and Melaleuca are insufficient to warrant them being retained separately and that they should be combined. As Melaleuca has precedence, adoption of Craven’s work would transfer all species of Callistemon into Melaleuca. Some state herbaria have adopted this change but, at this stage, the re-classification has not been taken up in the Australian Plant Census, which ANPSA recognises as the authority on plant nomenclature. For this reason we have retained Callistemon as a separate genus but the corresponding names under Melaleuca will also be mentioned where appropriate.

Craven’s re-classification has been adopted in a 2013 publication “Melaleucas: their botany, essential oils and uses” by Joseph J. Brophy, Lyndley A. Craven and John C. Doran

 

Plant profile image

The common green-flowered form of Callistemon pinifolius
Photo: Brian Walters

Plant profile image

An orange/red form of Callistemon pinifolius
Photo: Brian Walters

 

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