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Summary
Mkani or Msambo (Allanblackia stuhlmannii) is a medium-sized to fairly large evergreen, flowering tree that can only be found in Tanzania. It grows up to 45m tall, and it has a straight bole that can be up to 65 cm in diameter and can be clear of branches for up to 9 m. First flowering usually occurs when the tree is about 12 years old. Fruits are long or cone shaped berry and takes more than a year to develop and mature. The tree is known for its seed oil and timber. The seed is a source of an edible, non-drying fat called Mkani fat that is used in cooking and has been used as a substitute for butter and cocoa butter. It can also be used as liniment on joint pain, wounds, and rashes. Further, the fat from the seeds is used to make candles. The leaves are commonly used in traditional medicine for treating coughs, and treating impotence (when used together with bark and roots). Other uses are as follows: the bark is a source of red dye and yellow dye; the fruit's pulp can be used in making jam; and the wood is used for construction, boxes, beehives, crates, and water container, and for fuel. The tree can be propagated by seeds or cuttings though layering and budding methods are being developed.
Physical Characteristics
Allanblackia stuhlmannii is an evergreen Tree growing to 35 m (114ft) by 35 m (114ft) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 10 and is frost tender. The flowers are pollinated by Insects, Birds, Bats. The plant is not self-fertile.
Suitable for: medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: mildly acid and neutral soils and can grow in very acid soils.
It cannot grow in the shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Allanblackia sacleuxii Hua Stearodendron stuhlmannii Engl.
Plant Habitats
Edible Uses
Edible Parts: Fruit Oil Seed
Edible Uses: Oil
An edible non-drying fat, called Mkani fat, is obtained from the seed[ 46 ]. It is locally important[ 46 ], where it is used in cooking and has been used as a substitute for butter and cocoa butter[ 299 ]. Air-dried seeds contain about 50% fat[ 299 ]. The fatty acid composition of the fat is remarkable as it consists mainly of stearic acid (45 - 58%) and oleic acid (40 - 51%)[ 299 ]. Only traces of other fatty acids are present. Its composition and resulting high melting point (35c) makes the fat a valuable raw material that can be used without transformation to improve the consistency of margarines, cocoa butter substitutes and similar products[ 299 ]. Seeds are extracted from the fruits by crushing them between the hands and rubbing them clean. Traditionally, the seeds are dried and crushed; the resulting mass is mixed with water and boiled until the fat separates and floats to the surface from where it is scooped off[ 299 ]. The fruit's slimy jelly-like pulp can be used in jam making[ 299 ].
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antirheumatic
In traditional medicine, the leaves are chewed to treat cough, while the leaves, bark and roots are used to treat impotence[ 299 , 398 ]. A seed extract is rubbed in to treat rheumatism[ 299 ]. The fat is applied as a liniment on aching joints, wounds and rashes and small quantities are taken orally to treat rheumatism[ 299 , 398 ]. The fat, mixed with the pounded seeds of Psorospermum febrifugum, is rubbed on deep cracks in the soles of the feet[ 299 ]. Guttiferone F, a prenylated benzophenone, has been isolated from the wood of the roots[ 299 ]. The compound is related to a group of compounds that has been investigated for its anti-HIV properties[ 299 ].
References More on Medicinal Uses
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Other Uses
Containers Dye Fuel Lighting Oil Wood
Other uses rating: Medium (3/5). The bark is a source of a red dye[ 46 ]. The bark yields a yellow dye[ 299 , 303 ]. The fat from the seed is used to make candles[ 299 ]. The heartwood is dark brown to purplish, usually present only as a small core - for example there would be around 10cm of heartwood in a bole of 65cm; the sapwood is pale grey-brown. Texture is medium; the grain straight. The wood air dries slowly, with a moderate tendency to cup, but with little or no splitting. It is difficult to saw when green, but once dry it saws easily and machines well. It holds nails well. The sapwood is not durable, but is permeable to preservatives; the heartwood is very resistant[ 299 ]. The wood is used for construction, cheap joinery, boxes, crates, beehives and water containers[ 299 , 303 ]. The wood is used for fuel[ 299 ].
Special Uses
Carbon Farming
References More on Other Uses
Cultivation details
Management: Standard New Crop Staple Crop: Oil
A tree of the tropics, the average annual rainfall in its habitat is 1,100 - 2,400mm with more than 180 rainy days a year[ 299 ]. The mean annual temperature is 18°c, maximum temperatures range from 25°c to 35°c whilst minima are occasionally as low as 3°c[ 299 ]. Grows best in a sunny position[ 303 ]. Trees grow naturally on mostly acidic clay soils derived from granite, gneiss or siliceous rock[ 299 ]. Prefers well-drained soil[ 303 ]. Under natural conditions, trees first flower when about 12 years old. Flowering is during the short rainy season in November - February and the fruits take more than 1 year to develop and mature[ 299 ]. A mature tree may yield up to 150 fruits or up to 50 kg fat per year[ 299 ]. The trees are fire-tolerant[ 299 ]. The fat from the seeds of Allanblackia stuhlmannii is very similar in composition to that of Allanblackia parviflora and Allanblackia floribunda[ 299 ]. A dioecious species, both male and female forms must be grown if seed is required[ 299 ]. Female trees are often retained when clearing land for agriculture, but planting is still rare. It is estimated that 1 male tree per 10 female trees is needed to ensure adequate pollination[ 299 ]. ICRAF, Kenya, is studying possibilities to domesticate this species and develop appropriate management techniques. A complete seed marketing chain is also being developed[ 299 ]. The selection of high-yielding trees for vegetative reproduction has started in Tanzania[ 299 ].
Carbon Farming
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Management: Standard
Plants grow to their standard height. Harvest fruit, seeds, or other products. Non-Destructive management systems.
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New Crop
Most new crops were important wild plants until recently, although some are the result of hybridization. They have been developed in the last few, decades. What they have in common is that they are currently cultivated by farmers. Examples include baobab, argan, and buffalo gourd.
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Staple Crop: Oil
(0-15 percent protein, 16+ percent oil). Some of these are consumed whole while others are exclusively pressed for oil. Annuals include canola, poppyseed, maize, cottonseed, sunflower, peanut. Perennials include high-oil fruits, seeds, and nuts, such as olive, coconut, avocado, oil palm, shea, pecan, and macadamia. Some perennial oil crops are consumed whole as fruits and nuts, while others are exclusively pressed for oil (and some are used fresh and for oil).
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Although trees can be grown from seeds, it is better to take cuttings (or air layers) from female trees. These can form roots in 8-12 weeks. Seed. Well-matured fruits are kept for about 2 weeks to allow the pulp to become soft and to make extraction of the seed easy. Fruits may be kept for up to 3 months if covered with banana leaves. Clean seeds are placed in a nursery where they take about 3 months to start to germinate, but germination may take more than 7 months to start and another 18 months to complete[ 299 ]. After germination, the seedlings are transferred to polythene tubes filled with soil. Mycorrhizae are necessary for the successful growth of the seedlings and it is therefore important to add soil from around the base of mother trees to the substrate[ 299 ]. Cuttings are placed a few cm deep in the soil at a 45? angle in polythene tubes with at least 1 node above the substrate. Cuttings strike root in 8 - 12 weeks, after which sprouted and rooted cuttings are transferred to polybags[ 299 ]. Methods of layering and budding are being developed. Initial tests with wildlings have shown good survival rates both with farmers and in experiments[ 299 ].
Other Names
If available other names are mentioned here
Other Names: Mkange, Mkani, Mkanye, Mkimbo, Msambu, Mwaka.
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Found In
Countries where the plant has been found are listed here if the information is available
Found In: Africa, Costa Rica, East Africa, Tanzania.
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
None Known
Conservation Status
IUCN Red List of Threatened Plants Status : Vulnerable
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(Engl.) Engl.
Botanical References
1
Links / References
For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.
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Subject : Allanblackia stuhlmannii
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