Boronia umbellata

Last updated

Orara boronia
Boronia umbellata leaf.jpg
Boronia umbellata in the Conglomerate Forest, near Nana Glen
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. umbellata
Binomial name
Boronia umbellata
Boronia umbellata DistMap125.png
Occurrence data from Australasian Virtual Herbarium

Boronia umbellata, commonly known as the Orara boronia, [2] 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.

Contents

flower detail Boronia umbellata flower.jpg
flower detail
habit Boronia umbellata habit.jpg
habit

Description

Boronia umbellata is an open shrub grows to a height of about 1 m (3 ft) and has many densely hairy branches. The leaves are pinnate with leaves with three, five or seven leaflets and are 20–95 mm (0.8–4 in) long and 10–55 mm (0.4–2 in) wide in outline with a petiole 6–20 mm (0.2–0.8 in) long. The end leaflet is elliptic in shape, 21–43 mm (0.8–2 in) long and 10–15 mm (0.4–0.6 in) wide and the side leaflets are similar but shorter. The flowers are dark pink and are arranged singly or in groups of up to ten in leaf axils, each flower on a pedicel 4–20 mm (0.2–0.8 in) long. The four sepals are triangular to egg-shaped, 2.5–3 mm (0.098–0.12 in) long, 1.5–2 mm (0.059–0.079 in) wide and hairy on the lower side. The four petals are 7–10 mm (0.28–0.39 in) long and 3.5–5 mm (0.14–0.20 in) with scattered hairs. The eight stamens alternate in length with those near the sepals longer than those near the petals. Flowering occurs from June to November and the fruit is a smooth capsule. [3] [4]

Taxonomy and naming

Boronia umbellata was first formally described in 1990 by Peter H. Weston and the description was published in Telopea . [5] [6] The specific epithet (umbellata) is a Latin word meaning "like an umbrella", referring to the umbel-like inflorescences. [3]

Distribution and habitat

The Orara boronia grows in and near damp gullies in forest but is only known from a few locations between Lower Bucca and Glenreagh near Coffs Harbour. [3] [2]

Conservation

This boronia is classed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 . The main threats to the species are habitat disturbance associated with road works and timber harvesting, including land clearing. [7]

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 fraseri</i> Species of flowering plant

Boronia fraseri, commonly known as Fraser's boronia, is a plant in the citrus family occurring near Sydney in Australia. It is an erect, multi-branched shrub with pinnate leaves and pink flowers arranged in small groups in the leaf axils.

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

Boronia safrolifera, commonly known as safrole boronia, is a species of flowering plant that is endemic to eastern Australia. It is an erect, woody shrub with pinnate leaves that have up to nineteen leaflets, and white to pink, four-petalled flowers.

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

Cyanothamnus occidentalis, commonly known as the rock boronia, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is an erect, woody shrub with pinnate or bipinnate leaves and groups of up to three white to pale pink, pink four-petalled flowers arranged in leaf axils.

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

Boronia warrumbunglensis is a plant in the citrus family Rutaceae and is endemic to a small area in the central west of New South Wales. It is a shrub with many branches, pinnate leaves and one or two pink, four-petalled flowers in the leaf axils. It is only known from the Warrumbungles and nearby districts.

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

Boronia angustisepala is a plant in the citrus family Rutaceae and is endemic to New South Wales, Australia. It is an erect shrub with many branches, pinnate leaves with up to eleven leaflets, and bright pink, four-petalled flowers.

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

Boronia chartacea is a plant in the citrus family Rutaceae and is endemic to the north coast of New South Wales. It is a shrub with simple, papery leaves and bright pink flowers, usually arranged singly in the leaf axils.

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

Boronia filicifolia is a plant in the citrus family, Rutaceae and is endemic to the far north-west of Australia. It is an erect or sprawling shrub with many branches, pinnate leaves with up to 55 leaflets and white to pink flowers with the sepals a similar length to the petals.

Boronia hoipolloi is a plant in the citrus family Rutaceae and is endemic to a small area in Queensland. It is an erect or pendulous shrub with pinnate leaves and pink, four-petalled flowers. It is only known from a few collections near Mount Isa.

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

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 interrex, commonly known as the Regent River boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area in the Kimberley region of Western Australia. It is an erect, sometimes low-lying shrub with pinnate leaves, cream-coloured to pale pink sepals and pink petals, the sepals longer and wider than the petals.

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

Boronia kalumburuensis is a plant in the citrus family Rutaceae and is endemic to the Kalumburu area of Western Australia. It is an erect or sprawling shrub with many branches, pinnate leaves and white to pink four-petalled flowers with the sepals longer and wider than the petals.

Boronia minutipinna is a plant in the citrus family Rutaceae and is endemic to a small area in the Kimberley region of Western Australia. It is an erect shrub with many branches, hairy stems and leaves, pinnate leaves and white to pink, four-petalled flowers with the sepals longer and wider than the petals.

Cyanothamnus montimulliganensis is a plant in the citrus family Rutaceae and is endemic to a single mountain in Queensland. It is an erect, woody shrub with pinnate or bipinnate leaves and white, four-petalled flowers usually arranged singly 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 squamipetala</i> Species of flowering plant

Boronia squamipetala is a species of plant in the citrus family, Rutaceae, and is endemic to Queensland, Australia. It is an erect shrub with pinnate leaves with between five and thirteen elliptic leaflets, and green to white, four-petalled flowers with hairy backs.

Boronia thedae, commonly known as the Theda boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area in the Kimberley region of Western Australia. It is an erect shrub when young, later a prostrate shrub with many branches, pinnate leaves, four white to cream-coloured or pale pink sepals and four similarly coloured petals, the sepals longer and wider than the petals.

References

  1. "Boronia umbellata". Australian Plant Census. Retrieved 17 March 2019.
  2. 1 2 "Orara boronia - profile". New South Wales Government Office of Environment and Heritage. Retrieved 19 February 2019.
  3. 1 2 3 Duretto, Marco F. (1999). "Systematics of Boronia section Valvatae sensu lato (Rutaceae)" (PDF). Muelleria. 12 (1): 65–66. Archived from the original (PDF) on 6 April 2020. Retrieved 19 February 2019.
  4. Weston, Peter H.; Duretto, Marco F. "Boronia umbellata". Royal Botanic Garden Sydney. Retrieved 19 February 2019.
  5. "Boronia umbellata". APNI. Retrieved 19 February 2019.
  6. Weston, Peter H. (1990). "Notes on Boronia (Rutaceae) in New South Wales, including descriptions of three new species". Telopea. 4 (1): 121–128. doi: 10.7751/telopea19904919 .
  7. "Approved Conservation Advice for Boronia umbellata (Orara Boronia)" (PDF). Australian Government Department of the Environment. Retrieved 19 February 2019.