Nepedia
Back to Discover
Advanced Reader
🧬

Swietenia

life science Maturity 11-13 Next article →

The genus *Swietenia* consists of several species of trees within the Meliaceae family. This family is commonly known as the chinaberry family. These trees are globally famous for producing mahogany wood. This timber is highly valued for its quality and appearance.

Swietenia mahagoni Ypey9
Swietenia mahagoni Ypey9

The genus is named after Gerard van Swieten. He was a Dutch-Austrian physician who lived from 1700 to 1772. Today, these trees serve as a major source of high-end timber for many industries.

*Swietenia* trees are medium-sized to large plants. They can reach heights of 20 to 45 meters. Their trunks can also grow quite wide. The leaves are pinnate, which means they have leaflets arranged along a central stem. These leaves measure 10 to 30 cm in length. They usually have three to six pairs of leaflets. Each individual leaflet is between 5 and 15 cm long. The trees are deciduous or semi-evergreen. This means the leaves may fall off shortly before new foliage grows.

Swietenia mahagoni Boynton Beach starr-090924-5919
Swietenia mahagoni Boynton Beach starr-090924-5919

Reproduction in these trees involves specific structures. The flowers grow in loose clusters called inflorescences. Each small flower has five petals that are white or greenish-yellow. After flowering, the tree produces a fruit called a capsule. This capsule is pear-shaped and has five valves. It measures between 8 and 20 cm long. Inside the capsule are many winged seeds. These seeds are about 5 to 9 cm long.

Swietenia humilis pods (25258438815)
Swietenia humilis pods (25258438815)

Because the species hybridize freely when grown close together, they are difficult to define biologically.

Scientists generally recognize three distinct species based on their locations. *Swietenia mahagoni*, known as West Indian mahogany, grows in southern Florida, Cuba, Jamaica, and Hispaniola.

Swietenia mahagoni Boynton Beach starr-090924-5919
Swietenia mahagoni Boynton Beach starr-090924-5919

*Swietenia humilis*, or Pacific Coast mahogany, is found along the Pacific coast of Mexico and Central America.

Swietenia humilis
Swietenia humilis

Finally, *Swietenia macrophylla*, known as Honduran mahogany, grows along the Atlantic coast of Central and South America down to Bolivia.

This species is the primary source of most mahogany used today.

The history of the mahogany trade has changed significantly. In the past, *Swietenia mahagoni* was the main source of timber. However, it was exported so extensively that its trade ended by the 1950s. In the late 1990s, many native locations faced restrictions. To ensure a steady supply, the genus was introduced to various Asian countries. Today, Fiji and India are the largest exporters of plantation-grown mahogany.

Empress Botanical Garden Pune 7
Empress Botanical Garden Pune 7

Trade in mahogany grown in these non-native Asian plantations is not restricted.

Growing *Swietenia* in certain areas is difficult due to biological pests. The mahogany shoot borer moth, or *Hypsipyla grandella*, is a major problem. This moth is also called the cedar tip moth. It attacks the tree by killing the terminal shoot, which is the very top growing point. This causes the tree to develop excessive branching instead of a straight trunk.

Fruit with leaves at Branch Canopy I IMG 8673
Fruit with leaves at Branch Canopy I IMG 8673

Because of this, growing plantations in Central America is not very common. Farmers must use frequent pesticide sprays to control the moths. This makes large-scale production relatively uneconomic in those regions.

There are also interesting uses and conservation efforts related to these trees. The fruit of *Swietenia macrophylla* is called "sky fruit" because it appears to hang upward. Some people use a concentrate from this fruit as a natural remedy for skin and blood circulation. On a global scale, all *Swietenia* species are listed by CITES. This means any timber crossing an international border requires specific paperwork. Environmental groups like Greenpeace and the Rainforest Action Network monitor the trade. They work to expose illegal logging, especially from places like Brazil.

Finally, it is helpful to understand how *Swietenia* relates to other woods. Some people use wood from the African genus *Khaya* as a substitute. This is known as African mahogany. Although it is a different genus, it belongs to the same Meliaceae family. This shows how different parts of the world produce similar types of useful timber through related biological systems.

642 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (7)
File:Swietenia humilis.jpg
Swietenia humilis.jpg
File:Swietenia humilis pods (25258438815).jpg
Swietenia humilis pods (25258438815).jpg
File:Swietenia macrophylla (30680883066).jpg
Swietenia macrophylla (30680883066).jpg
File:Fruit with leaves at Branch Canopy I IMG 8673.jpg
Fruit with leaves at Branch Canopy I IMG 8673.jpg
File:Empress Botanical Garden Pune 7.jpg
Empress Botanical Garden Pune 7.jpg
File:Swietenia mahagoni Boynton Beach starr-090924-5919.jpg
Swietenia mahagoni Boynton Beach...
File:Swietenia mahagoni Ypey9.jpg
Swietenia mahagoni Ypey9.jpg
More to explore

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.