Winged Simaba (Simaba alata)
Simaba alata: Winged Rachis, Habitat, and Botanical Profile
Inhabiting the diverse Atlantic Forest and Cerrado biomes of Brazil, Simaba alata showcases distinctive vegetative adaptations. This wild shrub or small tree grows within undisturbed forest margins and wooded savannas. Its structural adaptations make it a noteworthy subject of taxonomic study.
Due to its specific ecological requirements, the species remains wild and has not been introduced to horticulturists. It plays a role in supporting local forest understory biodiversity.
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 alata (Winged Simaba)
Morphology
This woody plant grows as a multi-branched shrub or small tree, reaching several meters tall. The leaves are pinnately compound and stand out due to a prominent winged rachis, which increases the photosynthetic surface area. This winged structure serves as a primary identifying feature in botanical keys.
Morphological characteristics include:
- Winged Rachis: The central leaf axis features flat, green, wing-like margins.
- Leaflets: Elliptic to obovate leaflets with a smooth, glossy upper surface.
- Flowers: Small, pale yellow or greenish flowers arranged in terminal, branched inflorescences.
- Fruits: Drupaceous, obovoid fruits that turn dark when fully mature.
Applications
The bark and roots contain extremely bitter compounds that have been used in South American traditional medicine. Decoctions are prepared to treat gastrointestinal distress, dysentery, and intermittent fevers. Researchers analyze these tissues for quassinoids and alkaloids, which exhibit promising anti-parasitic and cytotoxic properties in vitro.
Interesting facts
The specific epithet alata translates to "winged" in Latin, referring to the characteristic winged leaf rachis. This morphological feature is relatively uncommon in the genus and facilitates quick identification in dense tropical forests. Herbarium specimens retain these prominent leaf wings, helping botanists catalog the geographical distribution of the species.
Geography of distribution
- Brazil
Sources
- POWO: Plants of the World Online (Royal Botanic Gardens, Kew)
- WFO: World Flora Online Partnership
- GBIF: Global Biodiversity Information Facility
- Tropicos: Missouri Botanical Garden Database