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Styphelia oblongifolia

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Styphelia oblongifolia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Styphelia
Species:
S. oblongifolia
Binomial name
Styphelia oblongifolia
Synonyms[1]

Astroloma oblongifolium A.J.G.Wilson & Hislop

Styphelia oblongifolia is a species of flowering plant in the heath family Ericaceae and is endemic to the south-west of Western Australia. It is an open or straggling shrub with erect, narrowly oblong leaves and pale yellow, tube-shaped flowers.

Description

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Styphelia oblongifolia is an open or straggling to erect shrub that typically grows to a height of 30 cm (12 in), its young branchlets densely covered with white hairs. The leaves are crowded, erect, narrowly oblong to narrowly egg-shaped with the narrower end towards the base, sharply-pointed, 5–18 mm (0.20–0.71 in) long and 2–4 mm (0.079–0.157 in) wide and more or less glabrous. The lower surface of the leaves is a paler shade of green and the edges are rolled down to almost rolled under. The flowers are pale yellow, arranged singly in upper leaf axils with a broadly egg-shaped, glabrous bracteole 2.6–4.5 mm (0.10–0.18 in) long and 2.5–3.5 mm (0.098–0.138 in) wide. The sepals are broadly egg-shaped, 5.5–10.5 mm (0.22–0.41 in) long and 2.6–3.7 mm (0.10–0.15 in) wide, pale yellow and hairy on the lower surface. The petals are joined at the base, forming a tube 6.0–9.5 mm (0.24–0.37 in) long, the lobes shorter than the petal tube. The style is 8.5–12 mm (0.33–0.47 in) long. Flowering mainly occurs in May and the fruit is elliptic about 5.5–6.5 mm (0.22–0.26 in) long and 3–4 mm (0.12–0.16 in) wide.[2]

Taxonomy

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This species was first formally described in 2013 by Annette Jane Gratton Wilson and Michael Clyde Hislop who gave it the name Astroloma oblongifolia in the journal Nuytsia from specimens collected by Hislop in the South Eneabba Nature Reserve in 2010.[2][3] In 2020, Hislop, Darren Crayn and Caroline Puente-Lelievre transferred A. oblongifolium to Styphelia as S. oblongifolium in the journal Australian Systematic Botany.[1][4] The specific epithet (oblongifolium) means "oblong-leaved".[5]

Distribution

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This species occurs in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions of south-western Western Australia.[6]

Conservation status

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Styphelia oblongifolia is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.[6]

References

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  1. ^ a b c "Styphelia oblongifolia". Plants of the World Online. Retrieved 23 March 2024.
  2. ^ a b Wilson, Annette Jane Gratton; Hislop, Michael C. (2013). "Four new species of Astroloma (Ericaceae: Styphelioideae: Styphelieae) from Western Australia". Nuytsia. 23: 38–41. doi:10.58828/nuy00639. Retrieved 24 March 2024.
  3. ^ "Astroloma oblongifolium". APNI. Retrieved 23 March 2024.
  4. ^ Crayn, Darren M.; Hislop, Michael C.; Puente-Lelièvre, Caroline (2020). "A phylogenetic recircumscription of Styphelia (Ericaceae, Epacridoideae, Styphelieae)". Australian Systematic Botany. 33 (2): 137. doi:10.1071/SB18050. ISSN 1030-1887. S2CID 211228418.
  5. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 263. ISBN 9780958034180.
  6. ^ a b "Styphelia oblongifolia". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.