Acacia podalyriifolia
A.Cunn. ex G.Don
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.
].
Acacia fraseri Hook.
Racosperma podalyriifolium (A.Cunn. ex G.Don) Pedley
Common Name: Queensland Silver Wattle
General Information
Acacia podalyriifolia is an evergreen shrub or small tree with a moderately dense crown; it can grow from 2 - 6 metres tall[
]. 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 plant is harvested from the wild for local use as a food and source of materials. It is a good ornamental, it is often grown in gardens, providing low shelter and a windbreak[
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 species seeds freely and may tend to become invasive in natural bushland areas. It should not be planted in gardens in the vicinity of such areas[
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.
].
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
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
,
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
Range
Australia - New South Wales, Queensland
Habitat
Hills and rocky ridges[
]. In the north of its range this species is more or less restricted to sandstone hills in open Eucalyptus forest, but in the south it occurs on rocks of various types[
].
Properties
Weed Potential | Yes |
Edibility Rating | |
Medicinal Rating | |
Other Uses Rating | |
Habit | Evergreen Tree |
Height | 3.00 m |
Growth Rate | Fast |
Pollinators | Insects |
Cultivation Status | Cultivated, Ornamental, Wild |
Cultivation Details
A plant of the warm temperate to subtropical zones, where it is found at elevations up to 700 metres. It grows best in areas where annual daytime temperatures are within the range 18 - 32°c, but can tolerate 10 - 40°c[
]. When dormant, the plant can survive temperatures down to about -5°c, but young growth can be severely damaged at 0°c[
]. Plants can resprout from the base if they are cut back by frost[
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
]. It prefers a mean annual rainfall in the range 700 - 1,000mm, but tolerates 500 - 1,200mm[
].
Prefers a sandy loam and a very sunny position[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
]. Succeeds in any good, well-drained garden soil that is not excessively limey[
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
,
167- Title
- A Field Guide to Australian Trees.
- Publication
-
- Author
- Holliday. I. and Hill. R.
- Publisher
- Frederick Muller Ltd.
- Year
- 1974
- ISBN
- 0-85179-627-3
- Description
- A well illustrated and very readable book, but it does not contain much information for the plant project.
]. Prefers a pH in the range 5 - 6, tolerating 4.5 - 6.5[
]. Many members of this genus become chlorotic on limey soils[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Can succeed in a hot dry position in a mixed border[
166- Title
- The Milder Garden.
- Publication
-
- Author
- Taylor. J.
- Publisher
- Dent
- Year
- 1990
- ISBN
-
- Description
- A good book on plants that you didn't know could be grown outdoors in Britain.
].
A fast-growing plant when young with annual increments in height of over 1 metre. It can flower in its second year from seed[
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.
,
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.
].
A very ornamental tree[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
], it can be pruned back hard after flowering in order to induce good flowering the following year[
260- Title
- Conservatory and Indoor Plants Volumes 1 & 2
- Publication
-
- Author
- Phillips. R. & Rix. M.
- Publisher
- Pan Books, London.
- Year
- 1998
- ISBN
- 0-330-37376-5
- Description
- Excellent photos of over 1,100 species and cultivars with habits and cultivation details plus a few plant uses. Many species are too tender for outdoors in Britain though there are many that can be grown outside.
].
Plants can flower and produce fruit all year round in suitable climates[
365- Title
- Flora of New South Wales
- Publication
-
- Author
-
- Website
- http://plantnet.rbgsyd.nsw.gov.au/floraonline.htm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An on-line resource giving a brief botanical description of all the native plants of New South Wales, their habitat and range, together with diagrams and photographs of the plants.
].
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[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Edible Uses
Flowers - cooked[
144- Title
- Wild Food in Australia.
- Publication
-
- Author
- Cribb. A. B. and J. W.
- Publisher
- Fontana
- Year
- 1976
- ISBN
- 0-00-634436-4
- Description
- A very good pocket guide.
]. Rich in pollen, they are often used in fritters[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. The flowers have a delicate sweet perfume[
245- Title
- Scented Flora of the World.
- Publication
-
- Author
- Genders. R.
- Publisher
- Robert Hale. London.
- Year
- 1994
- ISBN
- 0-7090-5440-8
- Description
- An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
].
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:
When planted on steep slopes or other fragile soil systems, the extensive root system of this plant binds the soil together and helps to prevent erosion[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
The plant has a dense, thorny growth. It can be used to provide low shelter and protection from the wind[
].
A good source of pollen for bees[
].
Other Uses
A yellow dye is obtained from the flowers[
168- Title
- Nature's Colors - Dyes from Plants.
- Publication
-
- Author
- Grae. I.
- Publisher
- MacMillan Publishing Co. New York.
- Year
- 1974
- ISBN
- 0-02-544950-8
- Description
- A very good and readable book on dyeing.
].
A green dye is obtained from the seed pods[
168- Title
- Nature's Colors - Dyes from Plants.
- Publication
-
- Author
- Grae. I.
- Publisher
- MacMillan Publishing Co. New York.
- Year
- 1974
- ISBN
- 0-02-544950-8
- Description
- A very good and readable book on dyeing.
].
The bark has a moderate tannin content[
,
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.
]. Bark harvested for its tannins should only be taken from mature stems, and only when the sap is rising at the beginning of the growing season - which is when the tannin content is highest and the bark is most easily removed from the wood[
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.
].
The pinkish wood is nicely marked[
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.
]. Although of small dimensions, it can sometimes be large enough to be used for posts, rails, small joinery items etc[
].
The wood is sometimes used as a low quality firewood[
].
Propagation
Seed - best sown as soon as it is ripe in a sunny position in a warm greenhouse[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
].The dried 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. Sow the seed in Spring in a greenhouse. As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in a sunny position in the greenhouse for their first winter. Plant them out in late spring or early summer, after the last expected frosts, and consider giving them some protection from the cold for their first winter outdoors.
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
-
].
Cuttings of half-ripe wood with a heel, mid summer in individual pots in a frame[
78- Title
- Propagation of Trees, Shrubs and Conifers.
- Publication
-
- Author
- Sheat. W. G.
- Publisher
- MacMillan and Co
- Year
- 1948
- ISBN
- -
- Description
- A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
]. Overwinter in a greenhouse for the first winter and plant out in their permanent positions in late spring or early summer. Fair percentage[
78- Title
- Propagation of Trees, Shrubs and Conifers.
- Publication
-
- Author
- Sheat. W. G.
- Publisher
- MacMillan and Co
- Year
- 1948
- ISBN
- -
- Description
- A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
].