Asterolasia trymalioides

Asterolasia trymalioides, commonly known as alpine star-bush,[2] 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.

Alpine star-bush
In Baw Baw National Park, Victoria
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Asterolasia
Species:
A. trymalioides
Binomial name
Asterolasia trymalioides
Synonyms[1]
  • Pleurandropsis trymalioides (F.Muell.) Anon.
  • Eriostemon trymalioides (F.Muell.) F.Muell.

Description

Asterolasia trymalioides is a prostrate to erect shrub that typically grows to a height of 0.2–1 m (7.9 in–3 ft 3.4 in). It has narrow elliptical to circular leaves that are about 5 mm (0.20 in) long with the edges turned under. The leaves are glossy green on the upper surface and covered with white to brown hairs underneath. The flowers are arranged singly or in small groups on the ends of branchlets, each flower sessile with small leaf-like bracts at their base. The five petals are yellow, 5–6 mm (0.20–0.24 in) long, and densely covered with brown, woolly, star-shaped hairs on the back. Flowering occurs in early summer.[2][3][4]

Taxonomy

Asterolasia trymalioides was first formally described in 1854 by Ferdinand von Mueller who published the description in Transactions of the Philosophical Society of Victoria, based on plant material that he collected from the rocky summit of the Cobberas Range.[5][6]

Distribution and habitat

Alpine star-bush grows in alpine and subalpine grassland, heathland and snow gum (Eucalyptus pauciflora) forest of New South Wales, the Australian Capital Territory and Victoria.[2][7]

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References
  1. "Asterolasia trymalioides". Australian Plant Census. Retrieved 8 July 2020.
  2. "Asterolasia trymalioides". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 1 January 2010.
  3. Wilson, Paul G. "Asterolasia trymalioides". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. Retrieved 8 July 2020.
  4. Duretto, Marco F. "Asterolasia trymalioides". Royal Botanic Gardens Victoria. Retrieved 8 July 2020.
  5. "Asterolasia trymalioides". APNI. Retrieved 8 July 2020.
  6. von Mueller, Ferdinand (1854). "Definitions of rare or hitherto undescribed Australian plants, chiefly collected within the boundaries of the colony of Victoria". Transactions of the Philosophical Society of Victoria. 1: 10. Retrieved 8 July 2020.
  7. Corrick, M.G.; Fuhrer, B.A. (2001). Wildflowers of Victoria and adjoining areas. Australia: Bloomings Books. ISBN 1876473142.
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