''Erythrophleum ivorense'' is a species of

leguminous Legumes are plants in the pea family Fabaceae (or Leguminosae), or the fruit or seeds of such plants. When used as a dry grain for human consumption, the seeds are also called pulses. Legumes are grown agriculturally, primarily for human consum ...

tree in the genus ''

Erythrophleum ''Erythrophleum'' is a genus of legume in the family Fabaceae. It includes ten species native to sub-Saharan Africa, Indochina, southern China, and northern Australia. Species ''Plants of the World Online'' includes: # ''Erythrophleum africanum' ...

'' found in the rainforests of tropical West and Central Africa. The tree has many uses; the timber is used for heavy construction, for making charcoal and for firewood, the bark is used for tanning and in

traditional medicine Traditional medicine (also known as indigenous medicine or folk medicine) refers to the knowledge, skills, and practices rooted in the cultural beliefs of various societies, especially Indigenous groups, used for maintaining health and treatin ...

, and both bark and seeds are poisonous and used for hunting.

Description

''Erythrophleum ivorense'' is a tall evergreen tree that can grow to a height of . The trunk is cylindrical and up to in diameter; it may be fluted near the base and may have buttresses. The bark is grey, scaly and fissured, and the inner bark is granular and reddish. The young twigs are downy and the alternate, bi-pinnate leaves each have up to seven pairs of alternately arranged

ovate Ovate may refer to: * Ovate (egg-shaped) leaves, tepals, or other botanical parts *Ovate, a type of prehistoric stone hand axe * Ovates, one of three ranks of membership in the Welsh Gorsedd * Vates or ovate, a term for ancient Celtic bards ...

leaflets and a terminal leaflet. The inflorescence is a terminal or auxiliary

raceme A raceme () or racemoid is an unbranched, indeterminate growth, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are ...

, about long, covered with reddish-brown down. The flowers are reddish-brown and hairy, with parts in fives, and are followed by flat, leathery, dangling seed pods, each containing up to six seeds.

Distribution and habitat

''Erythrophleum ivorense''is native to tropical West Africa where its range extends from

The Gambia The Gambia, officially the Republic of The Gambia, is a country in West Africa. Geographically, The Gambia is the List of African countries by area, smallest country in continental Africa; it is surrounded by Senegal on all sides except for ...

Gabon Gabon ( ; ), officially the Gabonese Republic (), is a country on the Atlantic coast of Central Africa, on the equator, bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo to the east and south, and ...

and the

Central African Republic The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central ...

. It occurs in evergreen and moist, semi-deciduous forest, primarily in mature second-growth forest. The roots often bear nodules containing ''

Bradyrhizobium ''Bradyrhizobium'' is a genus of Gram-negative bacteria, Gram-negative soil bacteria, many of which fix nitrogen. Nitrogen fixation is an important part of the nitrogen cycle. Plants cannot use atmospheric nitrogen (N2); they must use nitrogen co ...

'',

bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...

which are capable of

nitrogen fixation Nitrogen fixation is a chemical process by which molecular dinitrogen () is converted into ammonia (). It occurs both biologically and abiological nitrogen fixation, abiologically in chemical industry, chemical industries. Biological nitrogen ...

Uses

The timber is very durable and is traded internationally. It is used for heavy construction, bridges, wharves and railway sleepers, as well as for

boat building Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems. This includes at minimum the construction of a hull, with any necessary propulsion, mechanical, navigation, safety and other ser ...

and wheel hubs. However the

sawdust Sawdust (or wood dust) is a by-product or waste product of woodworking operations such as sawing, sanding, milling and routing. It is composed of very small chips of wood. These operations can be performed by woodworking machinery, portable p ...

is irritating to the

mucosa A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. It consists of one or more layers of epithelial cells overlying a layer of loose connective tissue. It ...

and may causes

asthma Asthma is a common long-term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. Symptoms include episodes of wh ...

and

allergies Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include Allergic rhinitis, hay fever, Food allergy, food al ...

to workers in sawmills. The wood makes good

charcoal Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, ca ...

and

firewood Firewood is any wooden material that is gathered and used for fuel. Generally, firewood is not heavily processed, and is in some sort of firelog, recognizable log or branch form, compared to other forms of wood fuel like pellet fuel, pellets. ...

. The bark is used in tanning and has several uses in

. Both the bark and the seeds are toxic and are used in hunting, and in Sierra Leone, the bark is used to poison fish.

References

{{Taxonbar, from=Q15432908 ivorense Trees of Africa Flora of West Tropical Africa Flora of West-Central Tropical Africa Plants used in traditional African medicine Taxa named by Auguste Chevalier