Boronia rupicola

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Boronia rupicola
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. rupicola
Binomial name
Boronia rupicola
Boronia rupicola DistMap106.png
Occurrence data from Australasian Virtual Herbarium

Boronia rupicola is a species of plant in the citrus family Rutaceae and is endemic to a small area in the Northern Territory, Australia. It is a small shrub with weeping branches, simple or pinnate leaves and small, green, inconspicuous flowers.

Contents

Description

Boronia rupicola is a shrub with weeping branches, that typically grows to a height of about 40 cm (16 in) and is able to grow from its rootstock. Its branches are brittle and more or less square in cross-section. The leaves are arranged in opposite pairs and there are both simple and pinnate leaves that are much paler on the lower surface. The leaves are 5–15 mm (0.20–0.59 in) long and 1–4 mm (0.039–0.157 in) wide in outline, on a petiole 1.5–7 mm (0.059–0.276 in) long. The leaflets are elliptic to lance-shaped, 7–10 mm (0.28–0.39 in) long and 1–3 mm (0.039–0.118 in) wide. The flowers are yellowish green and are borne singly, sometimes in groups of up to three on a peduncle 0.5–1 mm (0.02–0.04 in) long, individual flowers on a pedicel 0.5–3 mm (0.02–0.1 in) long. The sepals are egg-shaped to triangular, 1–1.5 mm (0.039–0.059 in) long and about 1 mm (0.04 in) wide. The petals are 2–2.5 mm (0.079–0.098 in) long and about 1.5 mm (0.06 in) wide. Flowering occurs between March and July and the fruit is a capsule about 3.5 mm (0.14 in) long and 2 mm (0.079 in) wide. [2] [3] [4]

Taxonomy and naming

Boronia rupicola was first formally described in 1997 by Marco F. Duretto who published the description in the journal Nuytsia . [5] The specific epithet (rupicola) is said to be derived form Latin rupestris, meaning "rocky" and incola, meaning, "inhabitant", referring to the specialised habitat of this species. [6]

Distribution and habitat

This boronia grows exclusively on vertical rock faces and is only known from Mount Brockman in Kakadu National Park and south of Nabarlek in Arnhem Land. [2] [3] [4]

Conservation status

This species is listed as "near threatened" under the Territory Parks and Wildlife Conservation Act 2000 . [3]

Related Research Articles

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

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

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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 decumbens</i> Species of flowering plant

Boronia decumbens is a plant in the citrus family Rutaceae and is endemic to northern parts of the Northern Territory. It is a low, spreading shrub with pinnate leaves and white to pink flowers with the four sepals larger than the four petals.

<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.

<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.

<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.

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

Boronia quinkanensis is a species of plant in the citrus family Rutaceae and is endemic to a small part of Queensland, Australia. It is an erect shrub with most parts covered with star-like hairs and has pinnate leaves with up to eleven leaflets, and pink to white, four-petalled flowers.

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

Cyanothamnus ramosus is a species of plant in the citrus family Rutaceae and is endemic to the southwest of Western Australia. It is an erect, mostly glabrous shrub with pinnate leaves with up to seven leaflets, and white, four-petalled flowers with blue or pale green backs.

Boronia rozefeldsii, commonly known as Schouten Island boronia, is a species of plant in the citrus family Rutaceae and is endemic to a small Tasmanian island. It is an erect, woody shrub with pinnate leaves and pink, four-petalled flowers. It is similar to B. pilosa which grows on the same island, but has larger petals and fewer hairs on the leaflets.

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

Boronia splendida is a species of plant in the citrus family, Rutaceae, and is endemic to Queensland, Australia. It is an erect shrub with most parts covered with star-like hairs and has simple, linear to narrow elliptic leaves, and pink to white, four-petalled flowers.

<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.

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

Boronia tolerans is a plant in the citrus family, Rutaceae and is endemic to a small area in the Northern Territory in Australia. It is an erect shrub with many branches, pinnate leaves and white, four-petalled flowers. It is only known from Nitmiluk National Park.

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

Boronia wilsonii is an erect shrub that is endemic to northern Australia. Its branches, leaves and backs of the flowers are densely covered with woolly hairs. The petals are white to pink or burgundy-coloured.

Cyanothamnus yarrowmerensis is a species of erect, woody shrub that is endemic to Queensland. It has pinnate or bipinnate leaves and groups of up to seven flowers with white petals in leaf axils.

References

  1. "Boronia rupicola". Australian Plant Census . Retrieved 25 April 2019.
  2. 1 2 Duretto, Marco F. (1997). "Taxonomic notes on Boronia species of north-western Australia, including a revision of the Boronia lanuginosa group (Boronia section Valvatae (Rutaceae)" (PDF). Nuytsia. 11 (2): 54–56. Archived from the original (PDF) on 6 April 2020. Retrieved 25 April 2019.
  3. 1 2 3 "Boronia rupicola". Northern Territory Government flora online. Retrieved 25 April 2019.
  4. 1 2 Duretto, Marco F.; Wilson, Paul G.; Ladiges, Pauline Y. "Boronia rupicola". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 25 April 2019.
  5. "Boronia rupicola". APNI. Retrieved 25 April 2019.
  6. Duretto, M. F. (1997). "Taxonomic notes on Boronia species of north-western Australia, including a revision of the Boronia lanuginosa groups (Boronia section Valvatae:Rutaceae)". Nuytsia. 11 (3): 336–341.