Boronia rhomboidea

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Broad-leaved boronia
Boronia rhomboidea.jpg
Boronia rhomboidea in the Australian National Botanic Gardens
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. rhomboidea
Binomial name
Boronia rhomboidea
Boronia rhomboidea DistMap101.png
Occurrence data from Australasian Virtual Herbarium

Boronia rhomboidea, commonly known as the broad-leaved boronia or rhomboid boronia, [2] is a plant in the citrus family Rutaceae and has a disjunct distribution in New South Wales and Tasmania in Australia. It is an erect, woody shrub with many branches, simple, broadly egg-shaped to almost circular leaves and groups of up to three white to pale pink, four-petalled flowers on the ends of the branches or in the axils of the upper leaves.

Contents

Description

Boronia rhomboidea is usually an erect, woody shrub with many branches that grows to a height of up to 1 m (3 ft) but is sometimes prostrate. Its younger branches are covered with soft hairs. The leaves are simple, broadly egg-shaped to almost round, 5–15 mm (0.2–0.6 in) long and wide, and often have red tinge. The flowers are white to pale pink and are arranged singly or in groups of up to three on the ends of the branches or in leaf axils usually without a peduncle. The four sepals are elliptic to oblong, 2.5–4.5 mm (0.1–0.2 in) long, 1–2 mm (0.04–0.08 in) wide with a few short hairs. The four petals are 5–8 mm (0.2–0.3 in) long and the eight stamens are glabrous. The stigma has four lobes and is slightly wider than the style. Flowering occurs from October to January and the fruit is a glabrous capsule 3.5–4.5 mm (0.14–0.18 in) long and about 2 mm (0.08 in) wide. [2] [3]

Taxonomy and naming

Boronia rhomboidea was first formally described in 1905 by William Jackson Hooker from a specimen collected by Ronald Campbell Gunn on the "side of the Western Mountains". The description was published in Icones Plantarum . [4] [5] The specific epithet (rhomboidea) is derived from Latin word rhombus meaning "an equilateral parallelogram with unequal pairs of angles". [6]

Distribution and habitat

The broad-leaved boronia grows in swampy heaths in New South Wales and Tasmania. It is found in the Tasmanian highlands and in New South Wales on the Southern Tablelands, mainly in the Budawang Range. [2]

Related Research Articles

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

Boronia pinnata is a plant in the citrus family, Rutaceae, and is endemic to New South Wales. It is an erect, woody shrub with pinnate leaves and groups of between three and forty pink flowers arranged in leaf axils. It flowers in spring and early summer and is found in coastal areas between Ballina and Jervis Bay.

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

Boronia muelleri, commonly known as the forest boronia or pink boronia, is a flowering plant that occurs in forest, woodland and heath in Victoria and New South Wales in Australia. It is an erect, woody shrub or small tree with pinnate leaves and up to fifteen pink to white four-petalled flowers arranged in leaf axils in spring and summer.

<i>Boronia mollis</i> Species of plant

Boronia mollis, commonly known as soft boronia, is a plant in the citrus family and is endemic to New South Wales. It is a shrub with pinnate leaves, and small groups of pink flowers in leaf axils. It grows in coastal areas in forest.

<i>Cyanothamnus anemonifolius</i> Species of flowering plant

Cyanothamnus anemonifolius, commonly known as narrow-leaved boronia or sticky boronia, is a flowering plant that is endemic to south-eastern Australia. It is a shrub with mostly pinnate leaves, with white to pale pink four-petalled flowers in leaf axils.

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

Boronia citriodora, commonly known as lemon-scented boronia, lemon plant or lemon thyme, is a woody shrub that is endemic to Tasmania. It has pinnate leaves and white to pink flowers that are arranged singly or in groups of up to seven, in the leaf axils or on the ends of the branches.

<i>Cyanothamnus nanus</i> Species of plant

Cyanothamnus nanus, commonly known as the dwarf boronia or small boronia is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a prostrate or low spreading shrub with simple or three-part leaves and white or pale pink four-petalled flowers.

<i>Cyanothamnus quadrangulus</i> Species of flowering plant

Cyanothamnus quadrangulus, commonly known as narrow-leaved boronia, is a plant in the citrus family, Rutaceae and is endemic to eastern Australia. It is an erect shrub with four-angled branches, bipinnate leaves and white, sometimes pale pink, four-petalled flowers.

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

Boronia floribunda, commonly known as pale pink boronia, is a plant in the citrus family, Rutaceae and is endemic to near-coastal areas of eastern New South Wales. It is an erect, woody shrub with compound leaves and large numbers of white to pale pink, four-petalled flowers in spring and early summer.

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


Boronia glabra, commonly known as sandstone boronia, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is an erect or weak shrub with many branches, mostly glabrous leaves with a slightly paler underside, and bright pink, four-petalled flowers arranged singly in leaf axils.

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

Boronia hemichiton, commonly known as Mt Arthur boronia is a plant in the citrus family Rutaceae and is endemic to Tasmania. It is an erect, woody shrub with compound leaves and pink or white, four-petalled flowers.

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

Boronia pilosa, commonly known as the hairy boronia, is a plant in the citrus family Rutaceae and is endemic to south-eastern Australia. It is an erect, woody shrub with hairy branches, pinnate, sometimes hairy leaves and groups of up to ten white to pink, four petalled flowers.

<i>Cyanothamnus rigens</i> Species of flowering plant

Cyanothamnus rigenss, commonly known as the stiff boronia, is a plant in the citrus family Rutaceae and is endemic to south-eastern New South Wales in Australia. It is a low, compact shrub with mostly trifoliate, glandular leaves and white to pale pink, four-petalled flowers in the leaf axils.

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

Boronia rosmarinifolia, commonly known as the forest rose, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a shrub with many branches, simple leaves and pale to bright pink flowers arranged singly in leaf axils.

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

Boronia subulifolia is a plant in the citrus family Rutaceae and is endemic to a small area in south-eastern New South Wales in Australia. It is an erect, woody shrub with pinnate leaves with mostly linear leaflets, and light to deep pink, four-petalled flowers in the leaf axils or on the ends of the branches.

Boronia citrata, commonly known as lemon boronia, is a plant in the citrus family, Rutaceae and is endemic to Victoria. It is an erect, woody shrub with pinnate, strongly lemon-scented leaves and pale pink to rosy pink, four-petalled flowers arranged in groups of up to five.

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

Boronia galbraithiae, commonly known as the aniseed boronia or Galbraith's boronia, is a plant in the citrus family Rutaceae and is endemic to a small area in Victoria. It is an erect, woody, fennel-scented, hairless shrub with pinnate leaves and white to deep pink, four-petalled flowers arranged in groups in the leaf axils.

<i>Boronia parviflora</i> Species of plant

Boronia parviflora, commonly known as the swamp boronia, small boronia, tiny boronia, or small-flowered boronia, is a plant in the citrus family Rutaceae and is endemic south-eastern Australia. It is a weak, low shrub with elliptic to egg-shaped leaves with finely toothed edges and up to three pink, white or green four-petalled flowers arranged at or near the ends of the stems.

<i>Cyanothamnus polygalifolius</i> Species of flowering plant

Cyanothamnus polygalifolius, commonly known as dwarf boronia, milkwort-leaved boronia or milkwort boronia, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a low-lying shrub with simple leaves and white or pink flowers arranged singly or in groups of up to three in leaf axils.

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

Boronia rubiginosa is a plant in the citrus family Rutaceae and is endemic to New South Wales in Australia. It is a shrub with pinnate leaves that are paler on the lower surface, and up to three pale to bright pink, four-petalled flowers in the leaf axils.

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

Boronia ruppii, commonly known as Rupp's boronia, is a species of plant in the citrus family Rutaceae and is endemic to a small area in New South Wales. It is a shrub with hairy branches, simple and trifoliate leaves and pink, four-petalled flowers in the leaf axils. It only grows around the abandoned Woodsreef asbestos mine.

References

  1. "Boronia rhomboidea". Australian Plant Census. Retrieved 17 March 2019.
  2. 1 2 3 Duretto, Marco F. (2003). "Notes on Boronia (Rutaceae) in eastern and northern Australia" (PDF). Muelleria. 17: 115–116. Archived from the original (PDF) on 6 April 2020. Retrieved 9 February 2019.
  3. "Boronia repanda". Royal Botanic Garden Sydney. Retrieved 12 February 2019.
  4. "Boronia rhomboidea". APNI. Retrieved 12 February 2019.
  5. Hooker, William Jackson (1848). Icones Plantarum. London: Hippolyte Baillière. p. TAB 722. Retrieved 12 February 2019.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 263.