Profuse-flowering Quassia (Quassia floribunda)

Simaruba Caixeta Marupá
Silhouette: T. Michael Keesey / License

Quassia floribunda: Brazilian Rainforest Tree Details

Thriving in the humid biomes of South America, Quassia floribunda grows as a prominent canopy tree within the Brazilian Atlantic Forest. Local communities identify this tree by its light, easily worked timber and intense bitter taste.

Forestry managers value the species for soil stabilization and reforestation projects. It adapts well to shaded environments during its early growth stages.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms
  • ∟ eudicots
  • ∟ Superrosids
  • ∟ rosids
  • ∟ malvids
  • ∟ order Sapindales
  • ∟ family Simaroubaceae (Quassia family)
  • ∟ genus Quassia (Quassia Wood)
  • ∟ species Quassia floribunda (Profuse-flowering Quassia)

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Morphology

The tree displays characteristic morphological adaptations for humid rainforest habitats. Its physical structure allows it to compete effectively in dense canopy environments.

  • Foliage: Alternate, pinnately compound leaves possess coriaceous, oblong leaflets with a highly lustrous upper surface.
  • Inflorescence: The branches terminate in large, densely branched panicles that carry numerous small, yellowish-white flowers.
  • Bark: The outer bark is smooth and greyish, containing high concentrations of bitter compounds.
  • Fruit: The fruit is a cluster of small, oval drupes that turn purplish-black when mature.

Applications

The plant has several practical and ecological applications in South American forestry and traditional industries. Its lightweight wood is particularly valued for specific manufacturing needs.

  • Woodworking: The lightweight, pale wood, often known as marupá, is utilized for making toys, boxes, and interior finishes.
  • Traditional Medicine: Folk practitioners use bark decoctions to treat digestive issues and reduce fever.
  • Pest Resistance: Natural bitterness protects the timber from termites and fungal decay, reducing the need for chemical treatments.

Interesting facts

Several intriguing details characterize the lifecycle and characteristics of this tree. Its prolific blooming cycles make it visually striking during the flowering season.

  • Abundant Blooms: The specific epithet floribunda highlights its prolific flowering habit, which blankets the canopy in pale yellow.
  • Natural Protection: The tree's chemical compounds act as a natural deterrent against leaf-cutter ants.
  • Timber Trade: Despite its softness, the wood is highly sought after because it does not warp easily when dried.

Geography of distribution

  • Brazil

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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