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Useful Tropical Plants

Acacia crassicarpa

A.Cunn. ex Benth.

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.
].
Closely related to Acacia aulacocarpa, with which it sometimes hybridizes in the wild[
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.
].

+ Synonyms

Racosperma crassicarpum (A.Cunn. ex Benth.) Pedley

Common Name: Northern Wattle

Acacia crassicarpa
Seedpods opening to release the seeds
Photograph by: Unknown
Image credit to Australian National Botanic Gardens
Acacia crassicarpa Acacia crassicarpa Acacia crassicarpa Acacia crassicarpa

General Information

Acacia crassicarpa is a small to medium-sized tree with an open, spreading crown; it can grow up to 25 metres tall with occasional specimens up to 30 metres[
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.
,
451
Title
Flora Malesiana Series 1
Publication
 
Author
Various
Website
http://www.archive.org
Publisher
Nationaal Herbarium Nederiand, Universiteit Leiden branch
Year
0
ISBN
 
Description
A massive treatment of the plants of the Malaysian Archipelago. Much of it has been made available to download from the Internet
]. The bole, which is up to 50cm in diameter and sometimes fluted at the base, is often straight and branchless for up to 13 - 18 metres[
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.
]. Although it produces leaves as a seedling, llike most members of the genus the mature plant does not have true leaves but has leaf-like flattened stems called phyllodes[
397
Title
Australian Native Plants Society
Publication
 
Author
 
Website
http://anpsa.org.au/index.html
Publisher
 
Year
0
ISBN
 
Description
A series of fact sheets on Australian plants. Good photographs, brief description and information on uses, habitat, range, cultivation etc.
].
The tree is planted for weed control, especially to rehabilitate land infested with Imperata cylindrica[
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.
]. The wood is used for firewood, making charcoal, for construction etc[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
]. This is one of a group of species that have been highly recommended as acommercial wood crop for use in tropical plantation forestry.
Logging is occurring and the timber is actively sought-after. The plant is classified as 'Vulnerable' in the IUCN Red List of Threatened Species(2011)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

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

451
Title
Flora Malesiana Series 1
Publication
 
Author
Various
Website
http://www.archive.org
Publisher
Nationaal Herbarium Nederiand, Universiteit Leiden branch
Year
0
ISBN
 
Description
A massive treatment of the plants of the Malaysian Archipelago. Much of it has been made available to download from the Internet

Range

Australia - Queensland, north to Papua New Guinea and Indonesia.

Habitat

Found in a variety of habitats including immediately behind beaches, on the coastal plains and foothills, in the understorey of open forest and in open Eucalyptus forest[
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.
].

Properties

Weed PotentialYes
Conservation StatusVulnerable
Edibility Rating *  *
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitTree
Height20.00 m
Growth RateFast
PollinatorsInsects
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Occurs mainly at low elevations in the humid and sub-humid tropics[
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.
]. It is found in areas where the mean annual rainfall can range from as low as 500 mm to as high as 3,500 mm, with a dry season of 3 - 6 months[
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.
]. The mean minimum temperature of the coolest month is 15 - 22°c, and the mean maximum temperature of the hottest month is 31 - 34°c[310. It does not experience frost in its natural range[
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.
].
Found in the wild on a variety of soil types, from calcareous beach sands, yellow earths derived from granite, red earths on basic volcanic rock to alluvial and colluvial soils derived from a variety of parent material[
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.
]. Plants appear to be tolerant of salt spray and soil salinity[
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.
]. Established plants are drought tolerant[
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 tree has been widely planted in the tropics, often to provide shade on beaches[
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.
], and has often escaped and become naturalised[
305
Title
Pacific Island Ecosystems at Risk
Publication
 
Author
 
Website
http://www.hear.org/pier/scientificnames/index.html
Publisher
 
Year
0
ISBN
 
Description
A very good website detailing weed species that have been introduced into the Pacific Islands.
].
This is one of the fastest growing tropical Acacia spp. It appears to maintain active shoot growth almost the year round, although a few months of stagnation may occur in the dry season[
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.
].
Under favourable conditions, seedlings grow rapidly reaching 25 - 30 cm tall in 3 - 4 months[
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.
].
Flowering starts as early as 18 months after planting, while seed is produced in abundance after 4 years. Seeds mature 5 - 6 months after flowering[
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.
].
Plants have attained a mean height of 15 - 23 metres and a mean diameter of 10 - 16 cm in 4 years, outperforming other fast-growing Acacia species including Acacia auriculiformis and Acacia mangium[
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.
].
Trees do not coppice well[
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.
].
In open situations, the crown is strongly branched and casts a moderate shade[
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.
].
Preliminary observations indicate that Acacia crassicarpa is resistant to low-intensity fires[
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.
].
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

An edible gum is obtained from the tree[
360
Title
Philippine Medicinal Plants
Publication
 
Author
 
Website
http://www.stuartxchange.org/CompleteList.html
Publisher
 
Year
0
ISBN
 
Description
A lovely site, giving brief details on the medicinal uses of several hundred (over 400 at the last count) plants in the Philippines, plus a picture of each plant.
]. This can be used to form a tofee (I assume this is a mis-spelling for toffee and not tofu[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]) when soaked in water with honey[
360
Title
Philippine Medicinal Plants
Publication
 
Author
 
Website
http://www.stuartxchange.org/CompleteList.html
Publisher
 
Year
0
ISBN
 
Description
A lovely site, giving brief details on the medicinal uses of several hundred (over 400 at the last count) plants in the Philippines, plus a picture of each plant.
].

The roots are cooked and eaten[
360
Title
Philippine Medicinal Plants
Publication
 
Author
 
Website
http://www.stuartxchange.org/CompleteList.html
Publisher
 
Year
0
ISBN
 
Description
A lovely site, giving brief details on the medicinal uses of several hundred (over 400 at the last count) plants in the Philippines, plus a picture of each plant.
].

Medicinal

The gum, roots, leaves, bark. pods and seeds have been used by aboriginal Australians in decoction, poultice, tonics or inhalations for the treatment of a variety of ailments including diarrhoea, dysentery, sore eyes, colds, sore eyes and skin conditions[
360
Title
Philippine Medicinal Plants
Publication
 
Author
 
Website
http://www.stuartxchange.org/CompleteList.html
Publisher
 
Year
0
ISBN
 
Description
A lovely site, giving brief details on the medicinal uses of several hundred (over 400 at the last count) plants in the Philippines, plus a picture of each plant.
].

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 provides shade and can be planted for weed control[
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.
]. It is often cited as an effective species for the rehabilitation of land infested with Imperata cylindrica[
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.
]. In Papua New Guinea, it is reported to be a very vigorous colonizer of degraded soils following shifting cultivation[
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.
].
It could be used for the revegetation and fixation of coastal sand dunes and for shelterbelts[
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 leaves decompose slowly and are useful as mulch[
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 sapwood is pale yellowish-brown and the heartwood golden-brown[
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.
]. The wood is hard, strong and durable[
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.
,
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.
]. It is used for construction, furniture, flooring, board and boat building[
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.
]. It appears suitable for pulping, but more study is required to confirm this use[
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.
].
The wood dries out moderately rapidly, burns well and is useful for firewood and for making charcoal, although it sparks at ignition and produces some fly ash and smoke during flaming[
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.
]. Its energy value is 22 600 kJ/kg[
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.
].

Propagation

Seed - requires pre-treatment to break down the hard coat[
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.
]. Pouring a small amount of boiling water over the seeds (which cools down quickly and so does not cook the seed), and then leaving to soak for 12 hours is usually effective, as is making a small incision in the coat to allow water to penetrate. Germination levels of 40 - 80% take place in 6 - 15 days[
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.
]. Treated seeds are sown in germination beds, and seedlings are transplanted into polythene bags when they reach the 2-leaf-pair stage. Seeds can also be sown straight into polythene bags. Young seedlings should initially be kept at 50% sunlight, but this can be increased to 70% once they have been established. In general, 3 - 4 months are needed to raise seedlings to a plantable size, 25 cm in height[
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.
].
Seeds stored in airtight containers at room temperature retain their viability for several years[
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.
].
Cuttings.
Air layering.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-10-06. <tropical.theferns.info/viewtropical.php?id=Acacia+crassicarpa>

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