Versicolor Quassia (Quassia versicolor)

Paraíba Marupá Caga-vite
Silhouette: T. Michael Keesey / License

Quassia versicolor: Brazil's Bitter Forest Tree Profile

Adapting successfully to the seasonal climates of the Brazilian Cerrado and Caatinga, Quassia versicolor showcases remarkable resilience against drought and fire. This woody species plays an important role in stabilizing soil and providing shade in open woodlands.

Its notable bitterness has made it a well-known plant in South American ethnobotany. The tree's survival in harsh climates is aided by its deep root system and tough leaf structure.

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 versicolor (Versicolor Quassia)

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Morphology

The physical features of Quassia versicolor reflect its adaptation to seasonal dry environments:

  • Leaves: Pinnately compound foliage, with leaflets showing a distinct light, glaucous underside that reflects excess sunlight.
  • Trunk: Covered in corky, thick bark that acts as a natural insulator against woodland fires.
  • Flowers: Small, pale yellow blossoms arranged in large panicles that emerge at the ends of branches.
  • Fruits: Small, dark ovoid drupes containing single seeds that are dispersed by forest fauna.

Applications

The practical uses of Quassia versicolor span traditional medicine and regional agriculture:

  • Natural Insecticide: Infusions made from the leaves and bark are traditionally used to treat external parasites in livestock.
  • Traditional Medicine: Local healers prepare decoctions from the roots to serve as bitter tonics and digestive aids.
  • Timber: The soft, light-colored wood is suitable for making light crates and paper pulp.

Interesting facts

The species possesses several characteristics that interest ecologists and botanists:

  • The common name 'Paraíba' connects the plant to specific regions of northeastern Brazil where it is abundant.
  • Its leaves contain natural compounds that inhibit the growth of surrounding weeds, reducing plant competition.

Geography of distribution

  • Brazil

Sources

  • POWO: Plants of the World Online catalog.
  • WFO: World Flora Online species registry.
  • Tropicos: Missouri Botanical Garden plant database.

Technical Information

External Databases: GBIF, POWO, Tropicos

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