Calytrix tetragona

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Calytrix tetragona
Calytrix tetragona (8691946147).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Calytrix
Species:
C. tetragona
Binomial name
Calytrix tetragona
Synonyms [1]
List
    • Calycothrix behriana Schltdl.
    • Calycothrix billardierei Schauer nom. illeg., nom. superfl.
    • Calycothrix brunioides(A.Cunn.) Schauer
    • Calycothrix curtophylla(A.Cunn.) Schauer
    • Calycothrix diversifolia Turcz.
    • Calycothrix glabra(R.Br.) Hook.f.
    • Calycothrix glabra var. ciliataHook.f.
    • Calycothrix glabra var. glaberrimaHook.f.
    • Calycothrix glabra(R.Br.) Hook.f. var. glabra
    • Calycothrix glabra var. virgataHook.f.
    • Calycothrix leucantha Miq.
    • Calycothrix monticolaMiq.
    • Calycothrix muelleriMiq.
    • Calycothrix roseaMiq.
    • Calycothrix scabra(DC.) Schauer
    • Calycothrix scabra var. minorSchltdl.
    • Calycothrix scabra(DC.) Schauer var. scabra
    • Calycothrix schlechtendaliiMiq.
    • Calycothrix squarrosaMiq.
    • Calycothrix sullivani F.Muell. orth. var.
    • Calycothrix sullivaniiF.Muell.
    • Calycothrix tetragona(Labill.) F.Muell.
    • Calycothrix virgataSchauer nom. illeg., nom. superfl.
    • Calythrix behrianaBenth. nom. inval., pro syn.
    • Calythrix billardieriiBenth. nom. inval., pro syn.
    • Calythrix brunioidesA.Cunn. orth. var.
    • Calythrix curtophyllaA.Cunn. orth. var.
    • Calythrix diversifoliaB.D.Jacks. orth. var.
    • Calythrix flavescens var. curtophyllaBenth. orth. var.
    • Calythrix leucantha Benth. nom. inval., pro syn.
    • Calythrix mitchellii S.Moore orth. var.
    • Calythrix monticolaBenth. nom. inval., pro syn.
    • Calythrix muelleriBenth. nom. inval., pro syn.
    • Calythrix roseaBenth. nom. inval., pro syn.
    • Calythrix scabraDC. orth. var.
    • Calythrix schlechtendaliiBenth. nom. inval., pro syn.
    • Calythrix squarrosaBenth. nom. inval., pro syn.
    • Calythrix sullivanii B.D.Jacks. orth. var.
    • Calythrix tetragonaBenth. orth. var.
    • Calythrix tetrapteraDC. orth. var.
    • Calythrix virgataA.Cunn. orth. var.
    • Calytrix brunioidesA.Cunn.
    • Calytrix curtophyllaA.Cunn.
    • Calytrix diversifolia(Turcz.) B.D.Jacks.
    • Calytrix ericoidesA.Cunn.
    • Calytrix flavescens var.curtophylla(A.Cunn.) Benth.
    • Calytrix glabraR.Br.
    • Calytrix mitchelliiS.Moore
    • Calytrix scabraDC.
    • Calytrix sullivanii(F.Muell.) B.D.Jacks.
    • Calytrix tetrapteraA.Cunn. nom. illeg., nom. superfl.
    • Calytrix virgataA.Cunn.
Habit in Grampians National Park Calytrix tetragona habit.jpg
Habit in Grampians National Park

Calytrix tetragona, commonly known as common fringe-myrtle [2] is a species of flowering plant in the myrtle family Myrtaceae and is endemic to all states of Australia. It is an erect or spreading shrub with linear to narrowly egg-shaped leaves and dense clusters of white or pink flowers with about 23 to 45 stamens.

Contents

Description

Calytrix tetragona is a shrub that typically grows to a height of up to 3 m (9.8 ft). Its leaves are linear, oblong, egg-shaped, or lance-shaped to narrowly elliptic, 0.75–14 mm (0.030–0.551 in) long, 0.4–1.5 mm (0.016–0.059 in) wide, the base abruptly narrowing to a petiole 0.2–1.5 mm (0.0079–0.0591 in) long. The flowers are usually borne in dense clusters on a narrowly funnel-shaped peduncle 1.0–1.5 mm (0.039–0.059 in) long with elliptic, egg-shaped or more or less round bracteoles 2.5–4.75 mm (0.098–0.187 in) long. The floral tube is 7–15 mm (0.28–0.59 in) long with ten ribbs, and partly fused to the style. The sepals are joined up to 0.4 mm (0.016 in) at the base, the lobes egg-shaped, elliptic or egg-shaped with the narrower end towards the base, 0.75–2.5 mm (0.030–0.098 in) long and 1.0–2.75 mm (0.039–0.108 in) wide with an awn up to 17 mm (0.67 in) long. The petals are white to pink, elliptic to lance-shaped, 3.5–7.5 mm (0.14–0.30 in) long and 1.25–3.0 mm (0.049–0.118 in) wide with about 23 to 45 stamens 1.6–5 mm (0.063–0.197 in) long in a single row. Flowering occurs n most months with a peak from August to October. [2] [3] [4] [5]

Taxonomy

Calytrix tetragona was first formally described in 1806 by Jacques Labillardière in his Novae Hollandiae Plantarum Specimen . [6] [7] [8] The specific epithet (tetragona) means 'four-angled',referring to the decussate leaves. [9]

Distribution and habitat

Common fringe-myrtle occurs in each state of Australia and in the Australian Capital Territory. It grows on sandplains, sand dunes, and on granite outcrops in the Avon Wheatbelt, Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Nullarbor, Swan Coastal Plain and Warren bioregions is found from near Bunbury to near Albany where grows on stunted jarrah and Banksia forest in the Esperance Plains, Jarrah Forest and Warren bioregions of south-western Western Australia. [4] In South Australia it is common in a wide range of habitats including heath, mallee and open forest in the southern part of the state. [10] The species is widespread in Victoria, especially in sandy and gravelly soils and on rock platforms. [5] It is the only species of Calytrix in Tasmania, and is a common coastal shrub. [11] In New South Wales, Queensland and the Australian Capital Territory, the species grows in heath, woodland and forest. [2] [12]

Conservation status

This species of Calytrix is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [4] and of "least concern" by the Government of Queensland. [12]

Use in horticulture

Common fringe-myrtle grows best in a sunny or lightly shaded situations in well-drained, lime-free. Some deep pink forms from near Keith appear to have potential as a garden subject. [13]

References

  1. 1 2 "Calytrix tetragona". Australian Plant Census. Retrieved 26 February 2025.
  2. 1 2 3 Wilson, Peter G. "Calytrix tetragona". Royal Botanic Garden, Sydney. Retrieved 26 February 2025.
  3. ↑ Craven, Lyndley (1987). "A taxonomic revision of Calytrix Labill. (Myrtaceae)". Brunonia: 30–33.
  4. 1 2 3 "Calytrix tetragona". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. 1 2 Jeanes, Jeff A. "Calytrix tetragona". Royal Botanic Gardens Victoria. Retrieved 27 February 2025.
  6. ↑ "Calytrix tetragona". Australian Plant Name Index. Retrieved 24 February 2025.
  7. ↑ Turczaninow, Nikolai (1849). "Decas sexta generum plantarum hucusque non descriptorum adjectis descriptionibus specierum nonnullarum". Bulletin de la Société impériale des naturalistes de Moscou. 22 (3): 20. Retrieved 24 February 2025.
  8. ↑ Labillardière, Jacques (1806). Novæ Hollandiæ plantarum specimen. Vol. 2. Paris. pp. 8–9. Retrieved 27 February 2025.
  9. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 323. ISBN   9780958034180.
  10. ↑ "Calytrix tetragona (Myrtaceae) Common Fringe-myrtle". Seeds of South Australia. Retrieved 27 February 2025.
  11. ↑ Jordan, Greg. "Calytrix tetragona". University of Tasmania. Retrieved 27 February 2025.
  12. 1 2 "Species profile—Calytrix tetragona (fringe myrtle)". Queensland Government Department of Education and Science. Retrieved 27 February 2025.
  13. ↑ "Calytrix tetragona". Australian National Botanic Gardens. Retrieved 27 February 2025.
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