Early-flowering Quassia (Quassia praecox)

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Quassia praecox: Botanical Profile of the Early-Flowering Wild Tree

Inhabiting the seasonally dry tropical forests of South America, Quassia praecox blooms early in the dry season before its foliage fully develops. This deciduous woody plant is appreciated for its ecological role in dryland ecosystems.

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 praecox (Early-flowering Quassia)

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Morphology

The growth habit of Quassia praecox is characterized by a moderate height and deciduous nature. Its pinnately compound leaves appear shortly after the initiation of the flowering phase.

The reproductive structures feature the following distinct traits:

  • Inflorescences: Branching panicles that emerge from the terminal shoots.
  • Flowers: Small, actinomorphic, with greenish-yellow petals.
  • Fruits: Small, clustered drupes containing single seeds.

Flowering season

Late dry season, typically from September to October

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Applications

Researchers extract bioactive compounds from Quassia praecox for biochemical studies. The bitter substances, known as quassinoids, show potential in agricultural pest management as natural deterrents.

Interesting facts

The specific epithet praecox translates from Latin to "early" or "premature," referencing the plant's habit of flowering prior to leaf emergence.

This adaptation allows the species to maximize pollinator visits by displaying flowers against bare branches.

Geography of distribution

  • Brazil
  • Paraguay

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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