Glandless Tongkat Ali (Eurycoma eglandulosa)

Silhouette: T. Michael Keesey / License

Eurycoma eglandulosa: Characteristics and Habitat

Eurycoma eglandulosa occurs in the wet tropical forests of the Philippine archipelago, particularly on the island of Mindanao. This plant grows in the shaded understory of primary rainforests, preferring well-drained soils. Its existence highlights the rich floristic diversity of the region.

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 eglandulosa (Glandless Tongkat Ali)

Living Pulse

Morphology

The plant grows as a small understory shrub with a slender erect habit. Its primary distinguishing feature is the absence of glands on the leaves and other vegetative parts. The pinnate leaves consist of lanceolate leaflets that have smooth margins and a glossy upper surface.

Small, inconspicuous flowers group together in paniculate inflorescences. The resulting drupes are relatively small and turn dark as they ripen. Each fruit contains a hard endocarp protecting the seed.

Applications

No significant commercial or agricultural applications are recorded for this species. It is primarily valued for its role in maintaining forest biodiversity and supporting local ecosystems. Botanical researchers study its chemical profile to compare it with other bioactive species in the genus.

Interesting facts

  • The name eglandulosa literally translates to "without glands," highlighting its unique morphological divergence from its relatives.
  • It is endemic to the Philippines, making it a key species for regional conservation efforts.
  • Its survival depends heavily on the preservation of primary rainforest habitats.

Geography of distribution

  • Philippines

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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