Fauvel's Tree of Heaven (Ailanthus fauveliana)

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Ailanthus fauveliana: Botany, Distribution, and Uses

Native to the dense tropical forests of Indochina, Ailanthus fauveliana stands as a majestic, lesser-known deciduous tree within the Simaroubaceae family.

It plays a subtle yet vital role in the complex forest ecosystems of Vietnam and Laos. The tree is highly adapted to seasonal climates, shedding its leaves during the dry period to conserve moisture.

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 fauveliana (Fauvel's Tree of Heaven)

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Morphology

This species develops into a tall canopy tree with a straight trunk and smooth, greyish-brown bark. The leaves are compound, arranged alternately along the branches, and can reach up to 60 centimeters in length.

Key botanical characteristics include:

  • Leaflets: Oppositely arranged, lanceolate to oblong-lanceolate, with asymmetrical bases and slightly wavy margins.
  • Flowers: Small, greenish-yellow, arranged in large terminal or axillary panicles.
  • Fruit: A dry, elongated samara containing a single central seed, which facilitates wind dispersal over long distances.

Applications

Local communities utilize the lightweight wood of this tree for light construction, packing boxes, and firewood. The bark and roots contain bitter compounds, typical of the Simaroubaceae family, which are occasionally used in traditional herbal preparations.

Interesting facts

The genus name Ailanthus is derived from the Ambonese word "ailanto," meaning "tree of heaven," referencing the impressive height these trees can achieve in their native habitats. Unlike its invasive relative, Ailanthus altissima, this tropical species remains confined to its native Asian range and does not exhibit aggressive colonization behaviors.

Geography of distribution

  • Vietnam
  • Laos
  • Cambodia

Sources

  • POWO (2026): Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.
  • WFO (2026): World Flora Online Project.
  • GBIF: Global Biodiversity Information Facility database.

Technical Information

External Databases: POWO

See also

White Siris

White Siris

Ailanthus triphysa

A tall evergreen rainforest tree native to Asia and Australia, famous for its aromatic halmaddi …

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