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WARBURGIA SALUTARIS

DISTRIBUTION

This spreading evergreen is widely distributed in lower rainforests, drier highland forest areas, and in secondary bushlands and grasslands (Dale and Greenway 1961). It is common in Babati district. It is found in Arusha, Tanga, Mwanza, Shinyanga, Dodoma, Kigoma, Tabora, Rukwa, Mbeya, Morogoro, and Iringa (Rulangaranga 1989).

Status: May be threatened because of the high demand for its medicinal bark.

Minimum Altitude (m):

1000

Maximum Altitude (m):

2000

PROPAGATION

Means of Propagation: Can be propagated by seed (direct sowing and seedlings), cuttings, and wildlings.

Seeds per kg:

10500

Germination Rate (%):

80

Seed Treatments: Fruits are oval berries 4 cm in diameter, turning dark purple when ripe. Wash the fruit and sow fresh seeds promptly as they lose viability quickly when stored.

Seedling Management: Regeneration is primarily from seed and germination rates are good. The seeds are hard to collect, but can be obtained in Kenya (Teel 1984). The tree is known to reproduce from cuttings.

SILVICULTURE

Planting Types: Grown as single trees and along boundaries.

Growth Factors: W. salutaris is fairly slow growing.

Growth Cycle: Flowers at the beginning of the rains and fruits form late in the rainy season. The fruits may remain on the tree for a long time (FAO 1986).

Management Systems: The tree has coppicing ability.

IMPORTANT USES

Use #1: MEDICINE
The medicinal properties of this species have been known for a long time and it is still highly regarded for its medicinal uses. The bark is sold in most major markets in Tanzania and demand appears to be high. The inner bark has many uses as a treatment for malaria, colds, chest pains, coughs, diarrhoea, muscle pains, stomach aches, and general body pains (Rulangaranga 1989).

Use #2: LAND IMPROVEMENT
It is nitrogen fixing and can be used for green manure and mulch. It also provides good shade.

Use #3: FODDER
The leaves, pods, and seeds all provide good fodder.

OTHER USES: The heartwood is oily, aromatic, and pale, and darkens with exposure to air. It saws and polishes well but is not durable (Palgrave 1988). It is used as firewood and occasionally as timber.

In many places the leaves are used to flavour soups and curries.


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