If you would like to support this site, please consider Donating.
Useful Tropical Plants

Entandrophragma excelsum

(Dawe & Sprague) Sprague

Meliaceae

+ Synonyms

Entandrophragma deiningeri Harms

Entandrophragma gillardinii Ledoux

Entandrophragma speciosum Harms

Entandrophragma stolzii Harms

Pseudocedrela excelsa Dawe & Sprague

Common Name:

Entandrophragma excelsum
Trees growing in native habitat
Photograph by: Scamperdale
Creative Commons License
Entandrophragma excelsum Entandrophragma excelsum Entandrophragma excelsum Entandrophragma excelsum

General Information

Entandrophragma excelsum is a briefly deciduous tree with a wide-spreading and roundish crown and massive branches; it can grow up to 45 metres tall, exceptionally to 60 metres. The straight, cylindrical bole can be free of branches for up to 27 metres; it is up to 250cm in diameter and can be buttressed to a height of 5 metres[
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.
,
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 is harvested from the wild for local use as a medicine and source of timber. It is grown to provide shade in agroforestry systems, and is also used as a shade tree along the sides of roads[
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.
].
Unlike most other members of the genus, which are commercial sources of African mahogany, this species is too rare to be exploited as a major commercial source of timber. Habitat loss is a more serious threat. The plant is classified as 'Least Concern' 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

None known

Botanical References

308
Title
Flora Zambesiaca
Publication
 
Author
 
Website
http://apps.kew.org/efloras/fz/intro.html
Publisher
 
Year
0
ISBN
 
Description
An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.

Range

Tropical Africa - eastern DR Congo, Uganda, Rwanda, Burundi, Tanzania, Zambia, Malawi.

Habitat

Rain-forests; sometimes riverine forest; rarely occurs in almost pure stands; at elevations from 925 - 2,220 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

Conservation StatusLeast Concern
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitDeciduous Tree
Height45.00 m
Self-fertileNo
Cultivation StatusCultivated, Wild

Cultivation Details



A dioecious species, both male and female forms need to be grown if fruit and seed are required[
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
].

Edible Uses

None known

Medicinal

Ash made from the root bark is rubbed into scarifications to treat blood cough[
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 are used to treat gonorrhoea and hernia[
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 used to provide shade in coffee plantations[
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.
].
In tests in Rwanda, Entandrophragma excelsum was shown to be useful as a shade tree in agroforestry systems; in particular, soya bean grew prolifically under the trees[
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 heartwood is pinkish brown when freshly cut, darkening to reddish brown upon exposure with golden shades; it is usually distinctly demarcated from 6 - 10cm wide band of pinkish white to pale brown sapwood. The grain is interlocked, sometimes straight; texture medium; quarter-sawn surfaces show a stripe figure, which is often irregular. The wood is hard; moderately lightweight to heavy; not durable, being liable to powder-post beetle, pinhole borer, termite and marine borer attacks. Logs are generally straight and cylindrical, but susceptible to severe star shakes and heavy checking on the end surfaces after felling because tension wood is often present. The wood air dries rather slowly, with 2.5 cm thick boards taking 2 months to dry from green to 15% moisture content. Careful stacking and weighting down is needed because the wood is liable to severe warping, cupping and distortion. Quarter-sawing before drying is recommended. Great care is needed to obtain satisfactory results in kiln drying. Once dry, the wood is moderately stable in service. The wood saws and works fairly easily with both hand and machine tools; it has only slight blunting effects on cutting edges; in planing and moulding operations a 15 - 25° cutting angle is recommended to avoid picking up of grain; the use of a filler is needed to obtain a good finish. The wood is difficult to drill cleanly and only the smaller sizes of square chisels can be used; nailing, screwing and gluing properties are satisfactory, but nail-holding power is poor; staining may give poor results on quarter-sawn surfaces, which can be overcome by the use of a filler. The wood is suitable for the production of sliced and rotary veneer, and can be made into plywood of satisfactory quality. The wood is suitable for construction, flooring, joinery, interior trim, furniture, cabinet work, musical instruments, vehicle bodies, toys, novelties, boxes, crates, carvings, turnery, veneer and plywood[
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.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
,
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 used for fuel and to make charcoal[
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.
,
364
Title
Field Guide to the Moist Forest Trees of Tanzania.
Publication
 
Author
Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D
Website
http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm
Publisher
Frontier
Year
0
ISBN
1-873070-33-0
Description
A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
].

Propagation

Seed - pre-soaking for 12 hours in warm water speeds up germination times[
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.
]. Sow the seed in a lightly shaded position[
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 seeds can be stored for some time in sealed containers in a cool place, but insect damage, to which they are very susceptible, should be avoided, e.g. by adding ash[
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.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2018-10-22. <tropical.theferns.info/viewtropical.php?id=Entandrophragma+excelsum>

Comments

James 24th November 2016 13:04
Useful info re Entandrophragma Excelsum.

"exceptionally to 60 metres" can now be said to "exceptionally to 81.5 metres" :)

Now found to be Africa's tallest tree at 81.5m.

Ref: https://www.newscientist.com/article/2114073-africas-tallest-tree-measuring-81m-found-on-mount-kilimanjaro/
Arnold Misana 01st December 2016 1:55
Tallest tree of the genus found in Tanzania and measures 81meters

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.