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Useful Tropical Plants

Piptadeniastrum africanum

(Hook.f.) Brenan

Fabaceae

+ Synonyms

Piptadenia africana Hook.f.

Common Name: African Greenheart

Piptadeniastrum africanum
Flowering tree
Photograph by: Scamperdale
Creative Commons License
Piptadeniastrum africanum Piptadeniastrum africanum Piptadeniastrum africanum Piptadeniastrum africanum Piptadeniastrum africanum

General Information

African greenheart is a tree that can range in height from only 5 metres in the drier areas of its range up to a large, emergent tree 50 metres tall in the wetter rainforests[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
]. The straight, cylindrical bole, which can be 1.8 - 3 metres in diameter, is up to 20 metres high above the buttresses before branching, though it is often slightly sinuous and forked at a lower level[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
]. The tree has many thin, high buttresses up to 4.5 metres, extending outwards at their base into many surface plank-roots[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. Young trees have a rounded crown, which develops into 2 distinct layers, of which the lower one disappears later and the upper one develops horizontally and ultimately becomes fragmented[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Adult trees have huge, flat crowns that spread in the upper canopy of the forest[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. The trees are often briefly deciduous, but frequently do not shed all leaves at the same time[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The tree is the source of a valuable timber, which is being exported in increasing quantities to Europe and other destinations. The plant is also a popular traditional medicine, a source of fibre and a soap substitute. It is sometimes employed as a shade tree in plantations - often by being left as the forest around it is cleared.

Known Hazards

The stem bark is very toxic[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. It is used in arrow poisons, as an ordeal poison; a fish poison; and is mixed with rice to poison mice[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The sawdust may irritate the skin and mucous membranes[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
].

Botanical References


Range

Tropical Africa - Senegal to southern Sudan, south to Angola and DR Congo.

Habitat

Evergreen and semi-deciduous forest, rain-forest, secondary forest, riverine forest; at elevations from near sea level to around 1,220 metres[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].

Properties

Medicinal Rating *  *
Other Uses Rating *  *  *
HabitSemi-deciduous Tree
Height30.00 m
PollinatorsBees
Cultivation StatusWild

Cultivation Details


Found in deep moist soils in the wild[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].
Seedlings are often common in the forest, even in dark shade[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. However, they grow very poorly in shade, where they may be only 20 - 35 cm tall when 3 years old, whereas they may reach up to 150 cm tall after 4 years in less shaded conditions in the forest[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Saplings and young trees demand light, and are usually found in small gaps in the forest[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Mean annual bole diameter increments vary widely according to geographic location. Young trees in Senegal achieved 12mm, whilst in the Cote d'Ivoire it was 4.9 mm[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. In Nigeria a tree reached 90cm bole diameter in 71 years[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The tree coppices well[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
].
The flowers are a good source of honey[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
This species can be confused with Samanea dinklagei and Parkia biglobosa[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].
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

Although it is recorded as being poisonous, African greenheart is commonly used in traditional medicine in Africa[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. The bark is the main part employed, though the roots and leaves are also sometimes used[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The roots and stem bark have been shown to contain saponins, tannins, flavonoids and leucoanthocyanes[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Bark decoctions are used internally to treat cough, bronchitis, headache, mental disorders, haemorrhoids, genito-urinary infections, stomach-ache, dysmenorrhoea and male impotence, and as an antidote
Applied externally, bark decoctions are used to treat fever, toothache, pneumonia, oedema, skin complaints and rheumatism, to expel worms, to dispel fleas, and as a purgative and abortifacient[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. A decoction of the bark also enters in a complex treatment of leprosy[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Root extracts or macerations are used to treat mental disorders, and as an abortifacient and aphrodisiac[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Pounded leaves and leaf decoctions are applied as an enema to treat gonorrhoea and abdominal complaints[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Agroforestry Uses:

The tree is planted or left during forest clearing as a shade tree in coffee, cocoa and banana plantations[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Other Uses

The bark fibre has been used to weave mats[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

The bark is used as a soap substitute[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

A good quality wood, it is considered to be an excellent replacement for oak (Quercus spp.) in Europe, where it is sometimes called 'African oak'[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The heartwood is light to golden brown; it is clearly demarcated from the 5 - 15cm wide band of greyish to pale straw sapwood. The texture is coarse; the grain broadly interlocked producing an attractive ribbon figure; the lustre is moderate; there is an ammoniac odour from the green wood and when the seasoned wood is wetted. The wood is moderately heavy; moderately hard; moderately durable, with a strong resistance to dry wood borers and termites. It seasons somewhat slowly, with a high risk of checking and distortion; once dry it is moderately stable in service. The wood is fairly easy to saw and work, but with some blunting effect on cutting edges, so the use of stellite-tipped sawteeth and tungsten-carbide-tipped cutting tools is recommended. A cutting angle of 10 - 15° is recommended in planing and moulding operations to avoid picking-up of grain. The wood finishes well, but the use of a filler is needed. It holds screws and nails well, but there is a slight tendency for splitting. The gluing properties are satisfactory. It may stain if in contact with iron under moist conditions. The wood is used for planks; heavy construction, including marine construction and bridges; railway sleepers, mine props, ship building, vehicle bodies, interior trim, joinery, furniture, including garden furniture, cabinet work, sporting goods, turnery, hardboard, particle board and pulpwood[
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.
,
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
]. It is used traditionally to make dug-out canoes[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
,
848
Title
Tropix 7
Publication
 
Author
 
Website
http://tropix.cirad.fr/en
Publisher
CIRAD
Year
0
ISBN
 
Description
An on-line guide to the timbers of 245 species of trees.
].
The wood is also used as fuel wood and for charcoal production[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Charcoal made from the wood has been found to be suitable for preparation of activated, decolourizing carbon used in sugar refining[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Propagation

Seed - best sown as soon as it is ripe since it has a short viability and cannot be stored for more than one month. It does not show dormancy, and usually germinates in 1 - 3 weeks[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. In a germination test, 96% of the seeds germinated within 8 days[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. The seed should be sown in lightly shaded nursery beds. The growth of seedlings is slow and they may stay in the nursery for more than one year before planting out[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Seeds for planting are collected from the forest floor. Wildlings are sometimes collected for planting[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

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