Tall Tree of Heaven
Ailanthus excelsa
A fast-growing, large deciduous tree native to India and Sri Lanka, highly valued for its …
Indian tree of heaven (Ailanthus pongelion)
White sirus
White bean
Halmaddi
Malabar ailanto
Guggul tree
IUCN: Вызывает наименьшие опасения
Silhouette: T. Michael Keesey
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Ailanthus pongelion: The Aromatic Incense Tree
In the misty, evergreen canopies of the Western Ghats and across Southeast Asia, a sweet, balsamic fragrance often betrays the presence of Ailanthus pongelion. This towering tree plays a crucial role in tropical forest ecosystems and has been woven into local cultures for generations.
Reaching high into the rainforest canopy, Ailanthus pongelion stands as a symbol of ecological resilience and structural majesty. Its aromatic secretions and lightweight timber make it a highly valued species in regional economies and forestry practices.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms (Core angiosperms)
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ malvids
- ∟ order Sapindales
- ∟ family Simaroubaceae (Quassia family)
- ∟ genus Ailanthus (Tree of heaven)
- ∟ species Ailanthus pongelion (Indian tree of heaven)
Morphology
Ailanthus pongelion is a fast-growing deciduous tree that can reach heights of up to 45 meters, supported by a straight trunk with smooth, greyish-brown bark. The crown is typically spreading and open, allowing sunlight to filter through the canopy.
The botanical structure of the species features several key characteristics:
- Foliage: The leaves are pinnately compound, measuring 30 to 60 centimeters in length, with 10 to 25 pairs of leaflets. Each leaflet is distinctively asymmetric and falcate, tapering to a fine point.
- Flowers: Small, greenish-yellow flowers are arranged in large terminal or axillary panicles, attracting a variety of insect pollinators.
- Fruit and Seeds: The tree produces oblong samaras that are 5 to 8 centimeters long. These papery, winged fruits facilitate wind dispersal of the centrally located single seed.
Flowering season
Late winter to early spring, typically between February and April.
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Applications
The primary commercial value of Ailanthus pongelion lies in its fragrant, resinous exudate, which is harvested from the bark. This sticky resin, known locally as halmaddi, serves as an essential binder and aromatic base in the incense industry.
Beyond incense production, the species serves several other practical purposes:
- Traditional Medicine: Decocts of the bitter bark and leaves are used in traditional Indian medicine to treat digestive ailments like dysentery, as well as skin irritations and fevers.
- Timber and Forestry: The lightweight, soft wood is widely used for making matchsticks, packing crates, and low-cost plywood.
- Ecological Restoration: Due to its fast growth rate and ability to colonize open areas, it is used in reforestation projects to restore degraded tropical lands.
Interesting facts
For centuries, the resin of Ailanthus pongelion has been central to spiritual practices. The distinct earthy, balsamic aroma of halmaddi incense is highly prized by connoisseurs worldwide for its calming properties.
Here are several fascinating details about the tree:
- Tree of Heaven: The name Ailanthus translates to "tree of heaven," reflecting the genus's tendency to rapidly shoot upwards to reach the forest light.
- Insect Interactions: The leaves of the tree are a primary food source for the larvae of the wild silk moth (Attacus atlas), one of the largest moths in the world.
- Resin Harvesting: Traditional harvesting of the resin is done sustainably by making shallow cuts in the bark, allowing the sticky sap to slowly solidify.
Geography of distribution
- India
- Sri Lanka
- Vietnam
- Thailand
- Malaysia
- Indonesia
- Australia
Sources
See also
Kurz's Ailanthus
Ailanthus kurzii
A tall tropical evergreen tree native to South and Southeast Asia, known for its winged …
Vilmorin's Tree of Heaven
Ailanthus vilmoriniana
A large deciduous tree native to western China, characterized by its deep red, finely pubescent …
White Siris
Ailanthus triphysa
A tall evergreen rainforest tree native to Asia and Australia, famous for its aromatic halmaddi …