Asterolasia elegans

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Asterolasia elegans
Asterolasia elegans.jpg
In Mount Annan Botanic Garden
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Asterolasia
Species:
A. elegans
Binomial name
Asterolasia elegans

Asterolasia elegans is a species of slender, erect shrub that is endemic to a restricted area of New South Wales. It has dense, woolly, rusty star-shaped hairs on its stems, lance-shaped leaves densely covered with white and rust-coloured hairs on the lower surface, and white flowers arranged singly or in groups of up to nine in leaf axils or on the ends of branchlets, the back of the petals densely covered with woolly, white hairs.

Contents

Description

Asterolasia elegans is an erect, spindly shrub that typically grows to a height of 1–3 m (3 ft 3 in–9 ft 10 in) with its stems densely covered with woolly, rusty-red, star-shaped hairs. The leaves are lance-shaped to elliptical, 40–130 mm (1.6–5.1 in) long and 9–25 mm (0.35–0.98 in) wide on a petiole 5–15 mm (0.20–0.59 in) long. The leaves are covered with white and rusty-red star-shaped hairs, densely so on the lower surface. The flowers are arranged singly or in umbels of up to nine in leaf axils or on the ends of branchlets, each flower on a pedicel 4–18 mm (0.16–0.71 in) long. The petals are white, elliptical, 8–14 mm (0.31–0.55 in) long, densely covered with white, star-shaped hairs on the back and there are ten stamens. [2] [3] [4]

Taxonomy

Asterolasia elegans was first formally described in 1990 by Lyn McDougall and Marianne F. Porteners in the journal Telopea from specimens collected by McDougall near Maroota in 1989. [4] [5]

Distribution and habitat

This species grows in moist places on hillsides in forests north of Sydney. [2] [4]

Conservation status

Asterolasia elegans is only known from seven populations over a distance of 37 km (23 mi) and is listed as "endangered" 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 include inappropriate fire regimes, habitat loss, weed invasion and grazing by feral animals and domestic livestock. [6] [7]

Related Research Articles

<i>Asterolasia</i> Genus of flowering plants

Asterolasia is a genus of seventeen species of erect or prostrate shrubs in the family Rutaceae, and is endemic to Australia. The leaves are simple and arranged alternately, the flowers arranged in umbel-like groups on the ends of branchlets or in leaf axils, usually with five sepals, five petals and ten to twenty-five stamens. There are seventeen species and they are found in all Australian mainland states but not in the Northern Territory.

<i>Correa alba</i>

Correa alba, commonly known as white correa, is a species of shrub that is endemic to south-eastern Australia. It has egg-shaped to more or less circular leaves, erect white flowers arranged singly or in groups on short side branches, and green fruit.

<i>Correa lawrenceana</i>

Correa lawrenceana, commonly known as mountain correa, is a species of shrub or small tree of the family Rutaceae and is endemic to Australia. It has elliptical to egg-shaped leaves arranged in opposite pairs and cylindrical, greenish yellow to red flowers usually arranged singly or in groups of up to seven in leaf axils with the stamens protruding beyond the end of the corolla.

<i>Asterolasia hexapetala</i> Species of flowering plant

Asterolasia hexapetala is a species of erect, spreading shrub that is endemic to the Warrumbungles in New South Wales. It has oblong to elliptical leaves with star-shaped hairs, especially on the lower surface, and white flowers arranged in small groups in leaf axils and on the ends of branchlets, the back of the petals densely covered with white, yellow or brown, woolly star-shaped hairs.

<i>Asterolasia trymalioides</i> Species of flowering plant

Asterolasia trymalioides, commonly known as alpine star-bush, is a species of erect, sometimes prostrate shrub that is endemic to eastern Australia. It has leathery, narrow elliptical to circular leaves densely covered with star-shaped hairs on the lower surface, and yellow flowers arranged singly in small groups on the ends of branchlets, the back of the petals covered with brown, star-shaped hairs.

<i>Asterolasia asteriscophora</i> Species of flowering plant

Asterolasia asteriscophora, commonly known as lemon starbush, is a species of slender, erect shrub in the family Rutaceae and is endemic to southern continental Australia. It has woolly, star-shaped hairs on its young branches, variably-shaped leaves covered with brownish or whitish hairs on the underside, and yellow flowers with woolly brown, star-shaped hairs on the back.

Leionema ceratogynum is a dense shrub, it grows on the south coast of New South Wales, Australia. It has oval-elliptic shaped leaves, scented foliage and lemon flowers usually in groups of three arising from the leaf axils.

Phebalium verrucosum is a species of shrub that is endemic to New South Wales. It has branchlets densely covered with white scales, narrow elliptic, oblong or linear leaves covered with white scales on the lower side, and umbels of creamy white flowers with silvery or rust-coloured scales on the back of the petals.

<i>Asterolasia beckersii</i> Species of flowering plant

Asterolasia beckersii, commonly known as Dungowan starbush, is a species of erect shrub in the family Rutaceae and is endemic to a restricted area of New South Wales. It has woolly, star-shaped hairs on its branchlets, egg-shaped to lance-shaped leaves with the narrower end towards the base and covered with star-shaped hairs, and white flowers arranged singly in leaf axils, the back of the petals covered with star-like hairs.

<i>Asterolasia buckinghamii</i> Species of flowering plant

Asterolasia buckinghamii is a species of slender, erect shrub in the family Rutaceae and is endemic to eastern New South Wales. It has star-shaped hairs on its young branches, broadly egg-shaped, hairy leaves and yellow flowers with rust-coloured, star-shaped hairs on the back of the petals.

Asterolasia buxifolia is a species of spindly shrub in the family Rutaceae and is endemic to a restricted area of eastern New South Wales. It has star-shaped hairs on its stems, leathery leaves and yellow flowers arranged singly in leaf axils with star-shaped hairs on the back of the petals.

<i>Asterolasia correifolia</i> Species of flowering plant

Asterolasia correifolia is a species of erect shrub that is endemic to eastern Australia. It has white to brown star-shaped hairs on its stems, lance-shaped to elliptical leaves densely covered with white star-shaped hairs on the lower surface, and white to cream-coloured or yellow flowers arranged in umbels of four to ten or more in leaf axils, the back of the petals densely covered with white hairs.

<i>Asterolasia grandiflora</i> Species of flowering plant

Asterolasia grandiflora is a species of weak, open shrub or sub-shrub that is endemic to the southwest of Western Australia. It has oblong, elliptical or egg-shaped leaves and pink to mauve flowers arranged in umbels of about three flowers with a thick covering of star-shaped hairs on the back of the petals.

Asterolasia muricata, commonly known as lemon star-bush, is a species of small, slender, erect shrub that is endemic to South Australia. It has leathery leaves covered with rough points and with the edges rolled under, and yellow flowers arranged singly or in groups of up to three, with woolly star-shaped hairs on the back of the petals.

<i>Asterolasia nivea</i> Species of flowering plant

Asterolasia nivea, commonly known as Bindoon starbush, is a species of weak sub-shrub that is endemic to the southwest of Western Australia. It has leathery oblong to narrow elliptical leaves and white flowers arranged in groups of about three flowers with thick-centred, shield like, star-shaped hairs on the back of the petals.

<i>Asterolasia phebalioides</i> Species of flowering plant

Asterolasia phebalioides, commonly known as downy starbush, is a species of shrub in the family Rutaceae and is endemic to south-eastern continental Australia. It has densely crowded heart-shaped to wedge-shaped leaves densely covered with star-shaped hairs, and single yellow flowers borne on the ends of branchlets with star-shaped hairs on the back of the petals.

<i>Asterolasia rupestris</i> Species of flowering plant

Asterolasia rupestris is a species of erect shrub that is endemic to New South Wales. It has heart-shaped to triangular leaves with the narrower end towards the base, and densely covered with star-shaped hairs. The flowers are yellow and arranged singly or in groups of three to six in leaf axils or on the ends of branchlets, the back of the petals densely covered with rust-coloured, star-shaped hairs.

<i>Correa lawrenceana <span style="font-style:normal;">var.</span> latrobeana</i>

Correa lawrenceana var. latrobeana is a variety of Correa lawrenceana that is endemic to south-eastern Australia. It is a shrub or small tree with elliptical to egg-shaped leaves and cylindrical, greenish-yellow or reddish-mauve flowers arranged singly or in groups of up to seven in leaf axils or on the ends of branchlets.

<i>Prostanthera albohirta</i>

Prostanthera albohirta is a species of flowering plant in the family Lamiaceae and is endemic to a restricted area of Queensland. It is a small, erect, densely-foliaged shrub with egg-shaped leaves and hairy, lilac to lavender flowers arranged singly in four to twelve leaf axils near the ends of branchlets.

Prostanthera athertoniana is a species of flowering plant in the family Lamiaceae and is endemic to a restricted area of Queensland. It is a small, densely-foliaged shrub with strongly aromatic, elliptical, oblong or egg-shaped leaves and hairy, purplish-mauve flowers arranged singly in upper leaf axils.

References

  1. "Asterolasia elegans". Australian Plant Census. Retrieved 26 June 2020.
  2. 1 2 "Asterolasia elegans". Royal Botanic Garden Sydney. Retrieved 26 June 2020.
  3. Wilson, Paul G. "Asterolasia elegans". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. Retrieved 26 June 2020.
  4. 1 2 3 McDougall, Lyn; Porteners, Marianne F. (1990). "Asteroasia elegans (Rutaceae), a new species from the Sydney region". Telopea. 4 (1): 139–140. doi: 10.7751/telopea19904922 .
  5. "Asterolasia elegans". APNI. Retrieved 25 June 2020.
  6. "Asterolasia elegans - profile". New South Wales Government Office of Environment and Heritage. Retrieved 26 June 2020.
  7. "National Recovery Plan - Asterolasia elegans" (PDF). Australian Government Department of the Environment. Retrieved 26 June 2020.