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Useful Tropical Plants

Machaerium aculeatum

Raddi

Fabaceae

+ Synonyms

Drepanocarpus isadelphus E.Mey.

Drepanocarpus polyphyllus Benth.

Machaerium sericiflorum Vogel

Nissolia aculeata (Raddi) DC.

Common Name: Pau De Angu

Machaerium aculeatum
Branch with new growth
Photograph by: Roberto Fiadone
Creative Commons Attribution-Share Alike 3.0
Machaerium aculeatum Machaerium aculeatum

General Information

Pau de angu is a spiny tree with a globose, dense crown growing 6 - 12 metres tall[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. The bole is crooked, and about 30 - 40cm in diameter[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
The tree is sometimes harvested from the wild for its wood, which is used locally. Ornamental when in bloom, it is grown in gardens, on roadsides etc. Its spines protect it from vandalism when it is small[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].

Known Hazards

None known

Botanical References


Range

S. America - Argentina, Brazil, Bolivia and Peru, north to Panama.

Habitat

Semi-deciduous forest, mainly in open, secondary formations, in unusual sites such as quarries, steep roadside banks and even on scraped subsoil[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. Exceptionally, it can be found in humid lowlands[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].

Properties

Other Uses Rating *  *
HabitTree
Height10.00 m
Growth RateMedium
Cultivation StatusOrnamental, Wild

Cultivation Details

A plant of lowland subtropical to tropical areas being found from around sea level to over 1,000 metres.
Prefers a sunny position, succeeding in most kinds of soil[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
Young plants establish reasonably well, reaching a height of 2.5 metres within 2 years[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].
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[
755
Title
Nodulation Plants in GRIN Taxonomy
Publication
 
Author
 
Website
http://www.ars-grin.gov/~sbmljw/cgi-bin/taxnodul.pl?language=en
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database listing plants that have either positive or negative reports on root and stem nodulation with nitrogen-fixing bacteria.
].

Edible Uses

None known

Medicinal

None known

Agroforestry Uses:

A pioneer species, it can be planted on reclaimed land where its ability to fix atmospheric nitrogen helps to restore fertility[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].

Other Uses

The wood is moderately heavy, easy to cut, of low durability when exposed[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. It is used in house construction, making boxes and light objects[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].

Propagation

Seed - best sown as soon as ripe in individual pots in a semi-shaded position. Germination rate is usually low, taking place in 25 - 45 days[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
]. Seedlings grow away slowly, taking 7 - 8 months before they are ready to plant out. They resent root disturbance, so care must be taken when planting them out[
419
Title
Brazilian Trees. Volume 1. 4th Edition.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2002
ISBN
85-86714-17-8
Description
Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
].

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