Boronia filifolia

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Slender boronia
Boronia filifolia.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Boronia
Species:
B. filifolia
Binomial name
Boronia filifolia
Boronia filifolia DistMap44.png
Occurrence data from Australasian Virtual Herbarium

Boronia filifolia, commonly known as the slender boronia, [2] is a plant in the citrus family Rutaceae and is endemic to south-eastern Australia. It is a slender shrub with simple or pinnate leaves and pale to deep pink four-petalled flowers.

Contents

Description

Boronia filifolia is a slender, glabrous shrub that grows to about 50 cm (20 in) high. Its leaves are simple or trifoliate on a petiole up to 2–8 mm (0.08–0.3 in) long. The simple leaves are linear to narrow egg-shaped, 3–30 mm (0.1–1 in) long and 1–1.5 mm (0.04–0.06 in) wide. The three leaflets on the pinnate leaves are similar to each other, 3–10 mm (0.1–0.4 in) long and 1–1.5 mm (0.04–0.06 in) wide. The flowers are pale to deep pink and are usually arranged singly in leaf axils near the end of the branches on a pedicel 2–13 mm (0.08–0.5 in) long. The four sepals are triangular to egg-shaped, 1–3 mm (0.04–0.1 in) long and 0.5–1.5 mm (0.02–0.06 in) wide with their bases overlapping. The four petals are 4–12 mm (0.2–0.5 in) long, 1.2–3 mm (0.05–0.1 in) wide and overlap at their bases. The stamens are covered with glandular hairs. Flowering occurs from July to February. [2] [3] [4]

Taxonomy and naming

Boronia filifolia was first formally described in 1858 by Ferdinand von Mueller who published the description in Fragmenta phytographiae Australiae from a specimen collected near Encounter Bay. [5] [6] The specific epithet (filifolia) is derived from the Latin words filum meaning "thread" [7] :797 and folia meaning "leaves" [7] :466 referring to the very narrow leaflets. [3]

Distribution and habitat

Slender boronia grows in heath, mallee and woodland. In South Australia it is found on the Eyre and Fleurieu Peninsulas and is common on Kangaroo Island. It is rare in Victoria where it is only known in the Little Desert National Park and part of the Big Desert near the border with South Australia, with a disjunct population near Portland. [2] [3]

Related Research Articles

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<i>Boronia lanceolata</i> Species of flowering plant

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<i>Boronia purdieana</i> Species of flowering plant

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<i>Boronia filicifolia</i> Species of flowering plant

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<i>Boronia nematophylla</i> Species of flowering plant

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<i>Bosistoa medicinalis</i> Species of flowering plant

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References

  1. "Boronia filifolia". Australian Plant Census. Retrieved 16 March 2020.
  2. 1 2 3 Duretto, Marco. "Boronia filifolia". Royal Botanic Gardens Victoria. Retrieved 31 January 2019.
  3. 1 2 3 Duretto, Marco F. (2003). "Notes on Boronia (Rutaceae) in eastern and northern Australia" (PDF). Muelleria. 17: 107–109. Archived from the original (PDF) on 6 April 2020. Retrieved 23 January 2019.
  4. "Boronia filifolia". State Herbarium of South Australia. Retrieved 7 July 2020.
  5. "Boronia filifolia". APNI. Retrieved 31 January 2019.
  6. von Mueller, Ferdinand (1858). Fragmenta phytographiae Australiae (Volume 1). Melbourne: Victorian Government Printer. p. 3. Retrieved 31 January 2019.
  7. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.