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Useful Tropical Plants

Prosopis nigra

(Griseb.) Hieron.

Fabaceae

+ Synonyms

Prosopis algarobilla nigra Griseb.

Prosopis dulcis Kunth

Common Name: Algarrobo Negro

Prosopis nigra
Trees growing in Uruguay
Photograph by: Tano4595
Creative Commons License
Prosopis nigra Prosopis nigra Prosopis nigra

General Information

Algarrobo negro is a small, spiny evergreen tree with a round-topped crown growing 4 - 10 metres tall with occasional specimens to 16 metres. The bole is 50 - 80cm in diameter[
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
].
The tree is harvested from the wild for its edible seedpods, which are consumed locally. It also provides a valuable timber and is a source of tannins.

Known Hazards

None known

Botanical References

491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.

Range

S. America - Argentina, Paraguay, Uruguay, southern Brazil and Bolivia.

Habitat

Found on riversides, usually on alkaline soils[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].

Properties

Edibility Rating *  *
Other Uses Rating *  *  *
HabitEvergreen Tree
Height8.00 m
Growth RateSlow
Cultivation StatusWild

Cultivation Details

A plant of moderate to higher elevations in the tropics and subtropics.
Requires a sunny position[
423
Title
Desert Tropicals
Publication
 
Author
 
Website
http://www.desert-tropicals.com/
Publisher
 
Year
0
ISBN
 
Description
The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
]. Found in the wild on alkaline and clay soils[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
]. Prefers deep clay soils with underground water at the root level[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
,
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
]. Established plants are drought resistant[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].
A slow-growing plant, even when small[
625
Title
Brazilian Trees. Volume 3.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2009
ISBN
85-86714-34-4
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

The fleshy seedpods have a sweet flavour[
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
]. The pods, which yellow tinged with violet when ripe, are 10 - 16cm long and 7 - 9mm wide[
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
].
The sweet-tasting pulp surrounding the seeds is edible[
625
Title
Brazilian Trees. Volume 3.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2009
ISBN
85-86714-34-4
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 fruits are used as a flour; to make juice; and as a coffee substitute[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
]. No further details are given[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

The fruits are sometimes used for manufacturing an alcoholic beverage[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
].

Medicinal

None known

Agroforestry Uses:

The tree is grown to provide shade[
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
].

Other Uses

The bark is a source of tannins[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
,
625
Title
Brazilian Trees. Volume 3.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2009
ISBN
85-86714-34-4
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 dark brown wood is coarse-textured, irregular to spiral-grained, heavy, compact, resistant, durable[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
625
Title
Brazilian Trees. Volume 3.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2009
ISBN
85-86714-34-4
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.
]. A very important and valuable timber tree, it is much used for general carpentry, furniture and barrels[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
].
The wood is used for fuel[
491
Title
Journal of the Arnold Arboretum Vol. 57
Publication
 
Author
 
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University
Year
1976
ISBN
 
Description
A botanical magazine, this issue has a comprehensive treatment of the genus Prosopis as well as several other articles. It can be downloaded from the Internet.
].

Propagation

Seed - best sown as soon as it is ripe in a partially shaded position in a nursery seedbed. A germination rate of greater than 70% can be expected, with the seed sprouting within 7 - 15 days[
625
Title
Brazilian Trees. Volume 3.
Publication
 
Author
Lorenzi. H.
Publisher
Instituto Plantarum De Estudos Da Flora; Brazil.
Year
2009
ISBN
85-86714-34-4
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 seeds germinate easily if they have been scarified by passing through an animal's digestive tract[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].
Like many species within the family Fabaceae, once they have been dried for storage the seeds of this species may benefit from scarification before sowing in order to speed up and improve 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[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

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