Allocasuarina torulosa

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Allocasuarina torulosa
Allocasuarina torulosa 3.jpg
Allocasuarina torulosa

Least Concern (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Casuarinaceae
Genus: Allocasuarina
Species:
A. torulosa
Binomial name
Allocasuarina torulosa
AllocasuarinatorulosaDistributionMap51.png
Occurrence data from AVH
Synonyms[2]
  • Casuarina ericoides Gentil
  • Casuarina lugubris Salisb.
  • Casuarina tenuissima Sieber ex Spreng
  • Casuarina torulosa Aiton

Allocasuarina torulosa, the rose she-oak or forest oak, is a tree which grows in sub-rainforest (just outside the main forest area) of Queensland and New South Wales, Australia.[3] There, it is typically found on coastal footslopes, hills, and plains.[4] Originally described as Casuarina torulosa by William Aiton, it was moved to its current genus in 1982 by Australian botanist Lawrie Johnson.[5] It is the type species of the genus Allocasuarina.

A. torulosa is an evergreen tree that typically reaches 12-18 metres (40-60 feet) tall and 4.5-7.5 metres (15-25 feet) wide.[3] It appears to have needle-like leaves, but these are actually twigs; the real leaves are actually in the joint of the needles and appear in whorls of four.[6] These needles have a weeping, pendulous appearance, and turn reddish-brown in the winter.[7] The tree produces warty cones 15-33 millimeters long and 15-15 millimeters in diameter.[8] Its bark is thick and corky.[9]

The timber is reddish pink to brown.[10] It is prized by woodworkers and woodturners as a rare and exotic timber, often used in wood turnings, knife handles and other specialist items.[9] The rose she-oak has the largest contraction along the grain (12%) of any Australian wood and needs to be dried carefully to get full value as a useful timber.[11]

It grows from seed,[12] and cut or broken trees will often regenerate from the trunk.

This is a low-maintenance tree that will grow in a variety of soils and tolerate light frosts.[12] In the US, it is suitable for USDA hardiness zones 8–11. It may be susceptible to Armillaria and Phytophthora.[13]

The seeds have been found to be a food source for the endangered Yellow-tailed black cockatoo.[4]

Foliage and fruits

References[]

  1. ^ IUCN SSC Global Tree Specialist Group.; Botanic Gardens Conservation International; et al. (BGCI) (2020). "Allocasuarina torulosa". IUCN Red List of Threatened Species. 2020: e.T177363617A177375942. doi:10.2305/IUCN.UK.2020-3.RLTS.T177363617A177375942.en. Retrieved 19 November 2021.
  2. ^ "The Plant List". Retrieved 26 April 2021.
  3. ^ a b "Allocasuarina torulosa, Forest Oak, Tree, [Casuarina torulosa]". www.smgrowers.com. Retrieved 26 April 2021.
  4. ^ a b "Allocasuarina torulosa". plantselector.botanicgardens.sa.gov.au. Retrieved 26 April 2021.
  5. ^ "Allocasuarina torulosa". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  6. ^ F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Allocasuarina torulosa". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 24 June 2021.
  7. ^ "Allocasuarina torulosa - Rose She-oak TUBESTOCK". The Native Shop. Retrieved 26 April 2021.
  8. ^ "PlantNET - FloraOnline". PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. Retrieved 24 June 2021.
  9. ^ a b "Allocasuarina torulosa Forest Sheoak Tree -". www.daleysfruit.com.au. Retrieved 26 April 2021.
  10. ^ "Rose sheoak | The Wood Database - Lumber Identification (Hardwood)". Retrieved 26 April 2021.
  11. ^ "She-Oaks in a Rural Landscape" (PDF). Glossy Black Conservancy. Archived (PDF) from the original on 26 February 2019. Retrieved 26 April 2021.
  12. ^ a b Stewart, Angus. "Allocasuarina torulosa -- Forest she-oak". Gardening with Angus. Archived from the original on 21 September 2020. Retrieved 26 April 2021.
  13. ^ "UFEI - SelecTree: A Tree Selection Guide". selectree.calpoly.edu. Retrieved 26 April 2021.

External links[]


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