Rio Doce Simaba (Simaba docensis)
Simaba docensis: Rare Plant of Minas Gerais, Brazil
Endemic to the state of Minas Gerais in southeastern Brazil, Simaba docensis thrives in specialized ecosystems within the Atlantic Forest biome.
This rare species, described by botanists E. V. Franceschinelli and K. Yamamoto, showcases the high level of endemism found in the region. It forms part of the rich and endangered flora of the Rio Doce basin area, from which it likely derives its specific epithet.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ malvids
- ∟ order Sapindales
- ∟ family Simaroubaceae (Quassia family)
- ∟ genus Simaba (Simaba Tree)
- ∟ species Simaba docensis (Rio Doce Simaba)
Morphology
The botanical structure of Simaba docensis is characterized by pinnate compound leaves and small, whitish to light-green flowers clustered in inflorescences. Like its relatives, it possesses bitter bark containing quassinoid compounds that act as natural defense agents.
The seeds are adapted to local seed-dispersal vectors, relying on native forest fauna for propagation.
Applications
Due to its narrow distribution and conservation status, Simaba docensis has no commercial applications. However, it is an important subject of botanical research focusing on the conservation genetics of endemic Atlantic Forest species.
Interesting facts
The species was named to honor its native region near the Doce River valley in Brazil, which has faced severe environmental challenges.
- It is adapted to the Atlantic Forest (Mata Atlântica), one of the most biodiverse but threatened biomes on Earth.
- The researchers who described it, Franceschinelli and Yamamoto, are prominent Brazilian botanists specialized in reproductive biology and taxonomy.
Geography of distribution
- Minas Gerais, Brazil
Sources
- POWO (2026): Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.
- WFO (2026): World Flora Online. Published on the Internet.
- GBIF Secretariat (2026): Simaba docensis in GBIF Backbone Taxonomy.