Article · Wikipedia archive · Last revised Jun 19, 2026

Calothamnus planifolius

Calothamnus planifolius is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is an erect shrub with many branches, growing to a height of about 1.5 metres (4.9 ft) with flat leaves and red flowers from September to November. The flowers have 4 petals and 4 narrow bundles of stamens.

Last revised
Jun 19, 2026
Read time
≈ 1 min
Length
320 w
Citations
9
Source
Wikipedia ↗
Calothamnus planifolius
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Calothamnus
Species:
C. planifolius
Binomial name
Calothamnus planifolius
Synonyms1
List
    • Calothamnus planifolia f. angustifolia Schauer orth. var.
    • Calothamnus planifolia f. latifolia Schauer orth. var.
    • Calothamnus planifolia var. angustifolia Schauer orth. var.
    • Calothamnus planifolia var. latifolia Schauer orth. var.
    • Calothamnus planifolius f. angustifolius Schauer nom. illeg.
    • Calothamnus planifolius f. latifolius Schauer
    • Calothamnus planifolius var. angustifolius Schauer nom. illeg.
    • Calothamnus planifolius var. latifolius Schauer
    • Melaleuca planifolia (Lehm.) Craven & R.D.Edwards

Calothamnus planifolius is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is an erect shrub with many branches, growing to a height of about 1.5 metres (4.9 ft) with flat leaves and red flowers from September to November.23 The flowers have 4 petals and 4 narrow bundles of stamens. (In 2014 Craven, Edwards and Cowley proposed that the species be renamed Melaleuca planifolia.)4

The species was first formally described by Johann Lehmmann in 1842 in Delectus Seminum quae in Horto Hamburgensium botanico e collectione.5

Calothamnus planifolius occurs in the Avon Wheatbelt and Jarrah Forest biogeographic regions2 where it grows in gravelly clay over laterite.6 It is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.2

References

References

  1. "Calothamnus planifolius". Australian Plant Census. Retrieved 28 December 2021.
  2. "Calothamnus planifolius". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. Hawkeswood, Trevor J. (1984). "Nine new species of Calothamnus Labill. (Myrtaceae: Leptospermoideae) from Western Australia". Nuytsia. 5 (1): 124–125. Retrieved 30 November 2020.
  4. Craven, Lyn A.; Edwards, Robert D.; Cowley, Kirsten J. (30 June 2014). "New combinations and names in Melaleuca (Myrtaceae)". Taxon. 63 (3): 666. doi:10.12705/633.38.
  5. "Calothamnus planifolius". APNI. Retrieved 1 August 2015.
  6. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue. Perth: Wildflower Society of Western Australia. p. 351. ISBN 0646402439.