Tavoy Tongkat Ali (Eurycoma tavoyana)

Silhouette: T. Michael Keesey / License

Eurycoma tavoyana: Myanmar's Rare Understory Shrub

Eurycoma tavoyana characterizes the moist tropical forests of southern Myanmar and adjacent parts of Thailand. This understory species thrives under the dense canopy of evergreen forests, where humidity remains consistently high. It plays an important role in the complex forest food web of the Indochina peninsula.

Taxonomy

  • царство Plantae
  • division Tracheophytes
  • subdivision Spermatophytes (Seed plants)
  • Angiosperms
  • mesangiosperms
  • eudicots
  • Superrosids
  • rosids
  • malvids
  • order Sapindales
  • family Simaroubaceae (Quassia family)
  • genus Eurycoma (Tongkat Ali Tree)
  • species Eurycoma tavoyana (Tavoy Tongkat Ali)

Living Pulse

Morphology

This species displays a typical shrubby or small tree growth habit with a single or sparingly branched trunk. The compound leaves are clustered at the ends of the branches, creating a umbrella-like crown. Leaflets are oblong-lanceolate with distinct venation patterns.

Its flowers are small, regular, and arranged in long, hanging panicles. The fruits are ovoid drupes that change color during maturation, attracting local bird species that aid in seed dispersal.

Applications

Traditional uses are limited to localized folk medicine, where preparations of the roots are sometimes used. However, there are no established commercial or pharmacological applications for this specific plant. It remains mostly a subject of interest for academic taxonomists and conservationists.

Interesting facts

  • The specific name tavoyana honors Tavoy (now Dawei), a historic port city in southern Myanmar where the species was collected.
  • It represents the high level of plant endemism found in the Tenasserim Hills region.
  • The seeds require specific forest conditions to germinate, making propagation outside its natural habitat difficult.

Geography of distribution

  • Myanmar
  • Thailand

Sources

  • Plants of the World Online (POWO)
  • World Flora Online (WFO)
  • Global Biodiversity Information Facility (GBIF)

Technical Information

External Databases: GBIF, POWO, Tropicos

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