Alphitonia excelsa


Alphitonia excelsa

Taxobox
name = "Alphitonia excelsa"



regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Rhamnaceae
genus = "Alphitonia"
species = "A. excelsa"
binomial = "Alphitonia excelsa"
binomial_authority = (Fenzl) Benth.
synonyms =

"Alphitonia excelsa", commonly known as the Red Ash or Soap Tree, is a species of tree in the Rhamnaceae family. It is endemic to Australia, being found in New South Wales, Queensland, Northern Territory and the northeastern tip of Western Australia. It is used in bush regeneration as a pioneer species and for amenity planting.

Taxonomy and naming

"Alphitonia excelsa" was first described by Eduard Fenzl and reclassified by George Bentham. One of 20 species of the genus "Alphitonia" in Australia and the Pacific Islands, its specific epithet is derived from the Latin "excelsus" 'tall'. [cite book|author = Simpson DP| title = Cassell's Latin Dictionary | publisher = Cassell Ltd.| date = 1979|edition = 5|location = London|pages = 883| isbn=0-304-52257-0] Other common names include Red Almond,de Beuzeville, p. 110] Silver Leaf, Leatherjacket, White Leaf, White Myrtle, Sarsaparilla Tree, and Coopers Wood.

Description

This tree reaches a height of 7-25 m (26-82 ft), by 5-10 m (16-33 ft) across.cite book |author=Eliot RW, Jones DL, Blake T |title=Encyclopaedia of Australian Plants Suitable for Cultivation: Vol. 2|year=1985|pages=p. 176 |publisher=Lothian Press |location=Port Melbourne |isbn=0-85091-143-5] The Red Ash has a spreading shade-producing habit when a larger tree with an overall greyish green appearance. The alternate leaves measure 5-14 cm (2-6 in) in length and 2-5 cm (1-2 in) wide and are dark glossy green above and silvery with fine hairs underneath, making an attractive contrast on windy days. The trunk and larger branches bear fissured grey bark, while smaller branches have smoother grey or white bark. It bears small greenish white flowers in late autumn and early winter, followed by globular dark fruit around 1.5 cm (0.5 in) in diameter,de Beuzeville, p. 125] which contain two seeds. When young shoots are bruised, they give off a typical odour of sarsaparilla.cite web |url=http://www.cpbr.gov.au/gnp/gnp6/alph-exc.html |title=Growing Native Plants - "Alphitonia excelsa" |accessdate=2008-04-24 |author=ANBG staff |date=1976 |work=Australian National Botanic Gardens website |publisher=Australian National Botanic Gardens] The flowers are fragrant in the evening.

Distribution and habitat

It grows in eucalypt forests, eucalypt and acacia savannas, gallery forests and rainforests of NSW from Mount Gulaga (previously known as Mt Dromedary) northwards along the coast and inland to the Pilliga scrub, though Queensland and the Northern Territory and into the northwest of Western Australia. [cite web |url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Alphitonia~excelsa |title="Alphitonia excelsa" (Fenzl) Benth. |accessdate=2008-04-24 |author=Harden GJ |date=1990 |work=Plantnet - New South Wales Flora Online |publisher=Royal Botanic Gardens, Sydney] Inland forms can be stunted in appearance. It prefers sandy soils.

Ecology

It serves as a food plant for the caterpillars of the Moonlight Jewel ("Hypochrysops delicia"), [cite book |title=The Complete Field Guide to Butterflies of Australia |last=Braby |first=Michael F.|year=2005 |publisher=CSIRO Publishing |location=Collingwood, Victoria |isbn=0-643-09027-4 |pages=p. 226]

Uses

Trees are quick growing in cultivation. This is an Australian ornamental tree, with some specimens of high visual appeal. It may be used in amenity planting as a street tree providing shelter. It has also been used in boat-building and cabinet making, its tough timber a light red or brown in colour. It can be a fodder plant for sheep and cattle, and is a useful pioneer species in bush regeneration. [cite web |url=http://www.lhccrems.nsw.gov.au/CPR/CPR/plant_profiles/a.excelsa.htm |title=Coastal plant Regeneration:Red Ash - "Alphitonia excelsa" |accessdate=2008-04-24 |author=HCCREMS |date=2005 |work=Hunter and Central Coast Regional Management Strategy (HCCREMS) website |publisher=HCCREMS]

References

cited text

*cite book |title=Australian Trees for Australian Planting |author=de Beuzeville WAW |year=1947 |publisher=Forestry Commission of New South Wales/ A. H. Pettifer, Govenrment Printer |location=Sydney

External links

*APNI | name = Alphitonia excelsa | id = 28728


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