Styphelia exarrhena

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Desert styphelia
Styphelia exarrhena.jpg
In Cox Scrub Conservation Park
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Styphelia
Species:
S. exarrhena
Binomial name
Styphelia exarrhena
(F.Muell.) F.Muell. [1]
Synonyms [1]
  • Leucopogon exarrhenusF.Muell.
  • Leucopogon hirtellusF.Muell. ex Benth.
  • Leucopogon hirtellus var. glabrifolius J.M.Black
  • Styphelia hirtella(F.Muell. ex Benth.) F.Muell.
  • Styphelia pusillifloraF.Muell.

Styphelia exarrhena, commonly known as desert styphelia, [2] is a species of flowering plant in the heath family Ericaceae and is endemic to southern continental Australia. It is an erect shrub with erect or spreading egg-shaped leaves, and cream-coloured, tube-shaped flowers arranged singly or in pairs in upper leaf axils.

Contents

Description

Styphelia exarrhena is an erect shrub that typically grows to a height of 30–60 cm (12–24 in) and has downy branchlets. Its leaves are erect or spreading, egg-shaped, 3.2–9 mm (0.13–0.35 in) long and 1.4–4.5 mm (0.055–0.177 in) wide. The leaves are usually glabrous and have a small point on the tip. The flowers are arranged singly or in pairs in upper leaf axils and have egg-shaped bracts 0.7–1.2 mm (0.028–0.047 in) long and bracteoles 1.3–2 mm (0.051–0.079 in) long. The sepals are egg-shaped, 2.4–3.2 mm (0.094–0.126 in) long, the petal tube cream-coloured, 3.0–4.3 mm (0.12–0.17 in) long with lobes 3.2–5 mm (0.13–0.20 in) long and bearded. Flowering occurs from April to August and the fruit is a narrowly elliptic drupe about 2.5 mm (0.098 in) long. [2] [3]

Taxonomy

This species was first formally described in 1859 by Ferdinand von Mueller, who gave it the name Leucopogon exarrhena in his Fragmenta Phytographiae Australiae . [4] [5] In 1867, von Mueller transferred the species to Styphelia as S. exarrhena in a later edition of the Fragmenta, and that name is accepted by Plants of the World Online. [1] Styphelia exarrhena and S. adscendens are characterised by their stamens protruding from the petal tube. [6]

Distribution and habitat

Desert styphelia grows in mallee scrub, coastal shrublands and heath in sandy soil in the south-east of South Australia including on the Eyre Peninsula and Kangaroo Island, and in the Big Desert area of Victoria. [2] [3]

Conservation status

Styphelia exarrhena is listed as "endangered" under the Victorian Government Flora and Fauna Guarantee Act . [2] [7]

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<i>Leucopogon strongylophyllus</i> Species of plant

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<i>Leucopogon woodsii</i> Species of plant

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<i>Styphelia epacridis</i> Species of flowering plant

Styphelia epacridis is a flowering plant in the family Ericaceae and is endemic to the south-west of Western Australia. It is a straggling shrub with lance-shaped or linear leaves with a sharp point on the tip, and red, tube-shaped flowers arranged singly in leaf axils.

References

  1. 1 2 3 "Styphelia exarrhena". Plants of the World Online. Retrieved 24 December 2023.
  2. 1 2 3 4 Albrecht, David E.; stajsic, Val. "Styphelia exarrhena". Royal Botanic Gardens Victoria. Retrieved 24 December 2023.
  3. 1 2 "Styphelia exarrhena". State Herbarium of South Australia. Retrieved 24 December 2023.
  4. ↑ "Leucopogon exarrhena". APNI. Retrieved 24 December 2023.
  5. ↑ von Mueller, Ferdinand (1859). Fragmenta phytographiae Australiae. Melbourne: Victorian Government Printer. p. 178. Retrieved 24 December 2023.
  6. ↑ Lang, Peter. "Taming the heaths: re-definition of Styphelia and Leucopogon and the demise of Astroloma". State Herbarium of South Australia. Retrieved 24 December 2023.
  7. ↑ "Flora and Fauna Guarantee Act 1988 Threatened List" (PDF). Victorian State Government. Retrieved 24 December 2023.
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