Biology:Asterolasia pallida
| Asterolasia pallida | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Asterolasia |
| Species: | A. pallida
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| Binomial name | |
| Asterolasia pallida Benth.[1]
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| Synonyms[1] | |
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Asterolasia pallida is a species of woody, perennial herb that is endemic to the southwest of Western Australia. It has elliptical leaves and white flowers arranged in umbels of three to six with star-shaped hairs on the back of the petals and fifteen to twenty-five stamens.
Description
Asterolasia pallida is a woody, perennial herb that typically grows to a height of about 1 m (3 ft 3 in) and sometimes forms a rhizome. The leaves are elliptical, 10–25 mm (0.39–0.98 in) long and covered with star-shaped hairs on the lower side. The flowers are arranged in umbels of three to six in leaf axils and on the ends of branchlets, each flower on a thin pedicel 3–10 mm (0.12–0.39 in) long. The petals are white, elliptical, 4–8 mm (0.16–0.31 in) long, with rust-coloured and colourless, star-shaped hairs on the back, and there are fifteen to twenty-five stamens.[2][3]
Taxonomy
Asterolasia pallida was first formally described in 1863 by George Bentham and the description was published in Flora Australiensis from specimens collected by James Drummond.[4][5]
In 1998, Paul Wilson described two subspecies and the names are accepted by the Australian Plant Census:
- Asterolasia pallida subsp. hyalina has petals with only colourless hairs on the back of the petals and only occurs in the Dryandra State Forest south-east of Perth;[6]
- Asterolasia pallida subsp. pallida has both colourless and reddish hairs on the back of the petals and has a widespread distribution on the Darling Range.[7][8]
Distribution and habitat
This species grows on laterite in jarrah - marri woodland on the Darling Range from near Perth to Manjimup. Subspecies hyalina is restricted to the Dryandra State Forest.[8][2]
Conservation status
Asterolasia pallida is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[3]
References
- ↑ 1.0 1.1 "Asterolasia pallida". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/108215. Retrieved 28 June 2020.
- ↑ 2.0 2.1 Wilson, Paul G.. "Asterolasia pallida". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra. https://profiles.ala.org.au/opus/foa/profile/Asterolasia%20pallida. Retrieved 28 June 2020.
- ↑ 3.0 3.1 "Asterolasia pallida". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/4400.
- ↑ "Asterolasia pallida". APNI. https://id.biodiversity.org.au/instance/apni/538953. Retrieved 28 June 2020.
- ↑ Bentham, George; von Mueller, Ferdinand (1863). Flora Australiensis. London: Lovell Reeve & Co.. p. 352. https://www.biodiversitylibrary.org/item/3669#page/410/mode/1up. Retrieved 28 June 2020.
- ↑ "Asterolasia pallida subsp. hyalina". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/164726. Retrieved 28 June 2020.
- ↑ "Asterolasia pallida subsp. pallida". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/141138. Retrieved 28 June 2020.
- ↑ 8.0 8.1 Wilson, Paul G. (1988). "Nomenclatural notes and new taxa in the genera Asterolasia, Drummondita and Microcybe (Rutaceae: Boronieae).". Nuytsia 12 (1): 84–85. https://www.biodiversitylibrary.org/item/224909#page/90/mode/1up. Retrieved 28 June 2020.
Wikidata ☰ Q15387395 entry
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