If you would like to support this site, please consider Donating.
Useful Tropical Plants

Acacia oraria

F.Muell.

Fabaceae


Classification of the genus Acacia (in the wider sense) has been subject to considerable debate. It is generally agreed that there are valid reasons for breaking it up into several distinct genera, but there has been disagreement over the way this should be done. As of 2017, it is widely (but not completely) accepted that the section that includes the majority of the Australian species (including this one) should retain the name Acacia, whilst other sections of the genus should be transferred to the genera Acaciella, Mariosousa, Senegalia and Vachellia[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

+ Synonyms

Racosperma orarium (F.Muell.) Pedley

Common Name:

Acacia oraria
Acacia oraria Acacia oraria Acacia oraria

General Information

Acacia oraria is a tree with a spreading crown; it can grow from 3 - 10 metres tall[
286
Title
Flora of Australia
Publication
 
Author
 
Website
http://www.anbg.gov.au/abrs/abif/flora/
Publisher
 
Year
0
ISBN
 
Description
The full information from the Flora of Australia - on-line. An excellent resource.
]. The tree usually has a well-defined main stem, which is seldom more than 30cm in diameter and has a fissured, fibrous bark[
713
Title
Australian Tropical Rainforest Plants
Publication
 
Author
 
Website
http://www.anbg.gov.au/cpbr/cd-keys/rfk/index.html
Publisher
 
Year
0
ISBN
 
Description
An online resource giving botanical information, and a little bit about plant usage, for over 2,700 species of plants found in the Australian rainforest.
,
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. Although it produces true leaves as a seedling, llike most members of this section of the genus, the mature plant does not have true leaves but has leaf-like flattened stems called phyllodes[
286
Title
Flora of Australia
Publication
 
Author
 
Website
http://www.anbg.gov.au/abrs/abif/flora/
Publisher
 
Year
0
ISBN
 
Description
The full information from the Flora of Australia - on-line. An excellent resource.
].
The tree has sometimes been grown in soil stabilization projects and for weed control. The wood is used for fuel and house posts.

Known Hazards

Especially in times of drought, many Acacia species can concentrate high levels of the toxin Hydrogen cyanide in their foliage, making them dangerous for herbivores to eat.

Botanical References

286
Title
Flora of Australia
Publication
 
Author
 
Website
http://www.anbg.gov.au/abrs/abif/flora/
Publisher
 
Year
0
ISBN
 
Description
The full information from the Flora of Australia - on-line. An excellent resource.

Range

Southeast Asia - Indonesia in Flores and Timor to northeastern Australia

Habitat

Sandy soils along beaches, often near the high tide mark, and along the sides of streams inland[
286
Title
Flora of Australia
Publication
 
Author
 
Website
http://www.anbg.gov.au/abrs/abif/flora/
Publisher
 
Year
0
ISBN
 
Description
The full information from the Flora of Australia - on-line. An excellent resource.
,
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. Occasionally found on the margins of monsoon forest and dry rain forest[
713
Title
Australian Tropical Rainforest Plants
Publication
 
Author
 
Website
http://www.anbg.gov.au/cpbr/cd-keys/rfk/index.html
Publisher
 
Year
0
ISBN
 
Description
An online resource giving botanical information, and a little bit about plant usage, for over 2,700 species of plants found in the Australian rainforest.
].

Properties

Medicinal Rating *  *
Other Uses Rating *  *
HabitTree
Height8.00 m
Growth RateMedium
PollinatorsInsects
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Acacia oraria is a plant of the warm to hot, humid tropics, where it can be found at elevations up to 700 metres. The mean maximum temperature of the hottest month is 32 - 34°c, dropping to around 14 - 17°c in the coolest month. Frosts are absent, The mean annual rainfall can range from 900 - 2,150mm[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].
Requires a sunny position. Found in the wild in deep, calcareous beach sands with shell grit or yellow earths - the soils are usually infertile, ranging from acidic to alkaline, and may be saline or subsaline. In Indonesia it is common on shallow soils over limestone[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. The plant is highly tolerant of saline soils[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. Plants are tolerant of seasonal inundation of the soil[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].
The plant is grown as an ornamental in Indonesia, where it is often used for street planting[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].
The plant coppices fairly well[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].
This species has a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].

Edible Uses

None known

Medicinal

The bark of all Acacia species contains greater or lesser quantities of tannins and are astringent. Astringents are often used medicinally - taken internally, for example. they are used in the treatment of diarrhoea and dysentery, and can also be helpful in cases of internal bleeding. Applied externally, often as a wash, they are used to treat wounds and other skin problems, haemorrhoids, perspiring feet, some eye problems, as a mouth wash etc[
601
Title
The Useful Native Plants of Australia.
Publication
 
Author
Maiden J.H.
Website
http://www.biodiversitylibrary.org
Publisher
Turner & Co.; London.
Year
1889
ISBN
 
Description
Terse details of the uses of many Australian plants and other species naturalised, or at least growing, in Australia. It can be downloaded from the Internet.
,
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Many Acacia trees also yield greater or lesser quantities of a gum from the trunk and stems. This is sometimes taken internally in the treatment of diarrhoea and haemorrhoids[
601
Title
The Useful Native Plants of Australia.
Publication
 
Author
Maiden J.H.
Website
http://www.biodiversitylibrary.org
Publisher
Turner & Co.; London.
Year
1889
ISBN
 
Description
Terse details of the uses of many Australian plants and other species naturalised, or at least growing, in Australia. It can be downloaded from the Internet.
].

Agroforestry Uses:

The tree is suitable for growing in order to provide soil protection and a fire-break in savannah areas[
303
Title
World Agroforesty Centre
Publication
 
Author
 
Website
http://www.worldagroforestry.org/
Publisher
 
Year
0
ISBN
 
Description
An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
Acacia oraria is one of the woody species that invades fire-degraded grasslands of Imperata cylindrica and Themeda triandra on spurs in the coastal foothills when they are protected from frequent fires[
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. Its dense foliage and heavy litter fall can suppress the plant within 2 yearsl[
303
Title
World Agroforesty Centre
Publication
 
Author
 
Website
http://www.worldagroforestry.org/
Publisher
 
Year
0
ISBN
 
Description
An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
,
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
]. It has been less successful in trials for weed control in teak plantations. Its use has also been restricted by its susceptibility to Corticium salmonicolor[
310
Title
Plant Resources of Southeast Asia
Publication
 
Author
 
Website
http://proseanet.org/
Publisher
 
Year
0
ISBN
 
Description
Lots of information on the uses of the plants of SE Asia.
].

Other Uses

The heartwood is dark brown; the sapwood is pale. The heavy and hard wood is attractively marked. It is used locally for house posts[
310
Title
Plant Resources of Southeast Asia
Publication
 
Author
 
Website
http://proseanet.org/
Publisher
 
Year
0
ISBN
 
Description
Lots of information on the uses of the plants of SE Asia.
,
1300
Title
Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics
Publication
 
Author
Doran J.C.; Turnbull J.W. (Editors)
Publisher
Australian Centre for International Agricultural Research; Canbe
Year
1997
ISBN
1-86320-127-0
Description
A very informative book, rich in information about the uses, cultivation needs and very much more for over 160 species of Australian trees and shrubs.
].
The wood has been used for fuel[
310
Title
Plant Resources of Southeast Asia
Publication
 
Author
 
Website
http://proseanet.org/
Publisher
 
Year
0
ISBN
 
Description
Lots of information on the uses of the plants of SE Asia.
].

Propagation

The seed of most, if not all, members of this genus has a hard seedcoat and may benefit from scarification before sowing to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing.
Acacia seeds that have matured fully on the bush and have been properly dried have a hard seed coat and can be stored in closed containers without deterioration for 5 - 10 years or more in dry conditions at ambient temperatures. It is best to remove the aril, which attracts weevils and can lead to moulds forming. The arils are easilyremoved by placing the seeds in water and rubbing them between the hands, then drying the seeds and winnowing them[
1294
Title
Potential of Australian Acacias in combating hunger in semi-arid lands
Publication
Conservation Science W. Aust. 4 (3):161-169 (2002)
Author
Rinaudo A.; Patel P.; Thomson L.A.J.
Publisher
 
Year
2002
ISBN
 
Description
 
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2018-10-16. <tropical.theferns.info/viewtropical.php?id=Acacia+oraria>

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.