Granite boronia | |
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Boronia repanda in the Australian National Botanic Gardens | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Rutaceae |
Genus: | Boronia |
Species: | B. repanda |
Binomial name | |
Boronia repanda | |
Occurrence data from Australasian Virtual Herbarium |
Boronia repanda, commonly known as the granite rose, repand boronia or border boronia, [2] is a plant in the citrus family Rutaceae and is endemic to an area near the eastern border between New South Wales and Queensland in Australia. It is a small erect, woody shrub with many branches, thick warty, oblong leaves and pink, rarely white flowers arranged singly in leaf axils.
Boronia repanda is an erect, woody shrub with many branches that grows to a height of 0.3–1.5 m (1–5 ft) with its young stems and leaves covered with white, star-shaped hairs. It has simple, oblong leaves that are 4–18 mm (0.2–0.7 in) long and 1.5–3 mm (0.06–0.1 in) wide, thick and prominently warty, on a petiole 0.5–1.5 mm (0.02–0.06 in) long. The flowers are pink, occasionally white and are arranged singly in leaf axils on a pedicel 1.5–4 mm (0.06–0.2 in) long. The four sepals are narrow egg-shaped to triangular, 3–4.5 mm (0.1–0.2 in) long, 1–1.5 mm (0.04–0.06 in) wide but increase in size as the fruit develops. The four petals are 6–9 mm (0.2–0.4 in) long, 3–4 mm (0.1–0.2 in) wide and enlarge as the fruit develops. The eight stamens alternate in length with those near the sepals longer than those near the petals. The style is hairy. Flowering mainly occurs from July to November and the fruit is a hairy capsule 4–5 mm (0.16–0.20 in) long and about 2 mm (0.08 in) wide. [3] [4] [5]
The granite rose was first formally described in 1905 by Joseph Maiden and Ernst Betche from an unpublished description by Ferdinand von Mueller. They gave it the name Boronia ledifolia var. repanda and published the description in Proceedings of the Linnean Society of New South Wales from a specimen collected near Stanthorpe by John L. Boorman. [6] [7] [8] In 1907 Maiden and Betche raised the variety to species status as Boronia repanda. [9] The specific epithet (repanda) is a Latin word meaning "bent backwards" or "undulate". [10]
The granite boronia is known from nine populations in Granite Belt and Darling Downs areas of south-east Queensland and one population on the Northern Tablelands region of New South Wales near the Queensland border. It grows in heath and woodland on granite. [3] [2]
Boronia repanda has been classified as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 , the Queensland Government Nature Conservation Act 1992 and the New South Wales Government Biodiversity Conservation Act 2016 . The main threats are removal of undergrowth for fire reduction purposes, inappropriate fire regimes, and the limited number of surviving plants. [2] [5] [11]
Eucalyptus scoparia, commonly known as the Wallangarra white gum or willow gum, is a small to medium-sized tree that is endemic to a small area of eastern Australia. It has smooth bark, linear to lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, hemispherical or bell-shaped fruit. It is restricted to a few rocky mountains near the border between New South Wales and Queensland but is widely cultivated.
Boronia ledifolia, commonly known as the Sydney boronia, showy boronia or ledum boronia, is a plant in the citrus family Rutaceae and is endemic to south-eastern Australia. It is a shrub with simple or pinnate leaves which have a strong odour when crushed, and pale to bright pink flowers. Although difficult to propagate, this boronia is a popular garden plant.
Boronia boliviensis, commonly known as Bolivia Hill boronia is a plant in the citrus family, Rutaceae and is endemic to a small area on the Northern Tablelands of New South Wales. It is a strongly scented shrub with pinnate leaves, deep pink flowers in spring and with its young branches covered with fine, yellow hairs. It is only known from higher parts of the Bolivia Range where it grows on granite outcrops.
Boronia deanei, commonly known as Deane's boronia, is a plant in the citrus family Rutaceae and is endemic to the central and southern highlands of New South Wales. It is an erect shrub with crowded, strongly aromatic leaves and white to bright pink flowers in late winter and spring.
Boronia microphylla, commonly known as small-leaved boronia, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a shrub with pinnate leaves with small leaflets and pink, four-petalled flowers.
Boronia obovata is a plant in the citrus family Rutaceae and is endemic to the Blackdown Tableland National Park in Queensland, Australia. It is an erect shrub with many branches, leaves usually with three leaflets, and pink, four-petalled flowers.
Boronia amabilis, commonly known as Wyberba boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area in southern Queensland. It is an erect shrub with many branches, pinnate leaves with hairy lower surfaces and pink, four-petalled flowers.
Boronia duiganiae is a plant in the citrus family Rutaceae and is endemic to mountain ranges in south-east Queensland, Australia. It is an erect shrub with many branches, leaves with one, three or five leaflets, and pink to white, four-petalled flowers.
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.
Boronia granitica, commonly known as granite boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area of eastern Australia. It is an erect shrub with many branches, compound leaves and pink, four-petalled flowers.
Boronia grimshawii is a plant in the citrus family Rutaceae and is endemic to mountain ranges in central Queensland, Australia. It is an erect shrub with many branches, simple leaves with a densely hairy, pale underside, and pink, four-petalled flowers.
Boronia purdieana is a plant in the citrus family, Rutaceae and is endemic to the south-west of Western Australia. It is a shrub with pinnate leaves and yellow, four-petalled flowers arranged singly in leaf axils.
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.
Boronia umbellata, commonly known as the Orara boronia, is a plant in the citrus family Rutaceae and is endemic to a small area on the north coast of New South Wales. It is an erect shrub with many branches, aromatic, pinnate leaves and clusters of up to ten dark pink flowers in the leaf axils.
Boronia adamsiana, commonly known as Barbalin boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area in the south-west of Western Australia. It is an erect, hairy shrub with trifoliate leaves and pink or white, four-petalled flowers.
Boronia beeronensis is a plant in the citrus family Rutaceae and is endemic to the Beeron National Park in Queensland, Australia. It is an erect shrub with many hairy branches, narrow, simple leaves, and four-petalled flowers.
Boronia bella is a plant in the citrus family Rutaceae and is endemic to a mountain range near Many Peaks Queensland, Australia. It is an erect shrub with many branches, simple leaves and four-petalled flowers.
Cyanothamnus inflexus is a plant in the citrus family Rutaceae and is endemic to tablelands near the New South Wales - Queensland border in Australia. It is an erect, woody shrub with pinnate leaves and up to seven white to pink four-petalled flowers in the leaf axils. Boronia bipinnata is similar but has larger, bipinnate or tripinnate leaves and smaller sepals and petals.
Boronia jensziae, commonly known as Andy Jensz's boronia or Hinchinbrook boronia, is a plant in the citrus family Rutaceae and is endemic to Hinchinbrook Island in Queensland. It is an erect, densely branched shrub with simple leaves and pink to white, four-petalled flowers usually arranged singly in leaf axils.
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.