Four-petaled Niepa tree (Samadera tetrapetala)
Samadera tetrapetala: Madagascar Species Profile and Morphology
Native to the coastal and humid forests of Madagascar, Samadera tetrapetala thrives in challenging tropical environments. This woody species contributes to the complex structure of the island's unique ecosystems. Its survival depends on the conservation of remaining littoral and lowland habitats in eastern Madagascar.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ malvids
- ∟ order Sapindales
- ∟ family Simaroubaceae (Quassia family)
- ∟ genus Samadera (Samadera Tree)
- ∟ species Samadera tetrapetala (Four-petaled Niepa tree)
Morphology
This plant forms a sturdy shrub or small tree with a well-developed branching system. Its leaves are simple, leathery, and oblong-elliptic, showing a distinct dark green surface. The foliage is densely packed near the branch tips, optimizing light capture in shaded forest understories.
The inflorescences are axillary clusters bearing small, bisexual flowers. Notable morphological characteristics include:
- Flowers: Distinctly four-petaled, which is highlighted by the specific epithet of the species.
- Disk: A large, nectar-producing conical structure situated at the center of the flower.
- Fruits: Dry, compressed drupes featuring a narrow wing that facilitates wind and water dispersal.
Flowering season
Wet season, typically from November to February
Applications
This wild plant is valued primarily for its role in maintaining forest biodiversity and soil stability in littoral zones. Researchers study its chemical compounds, which include bitter quassinoids with potential insecticidal properties. The species is not currently cultivated for commercial or ornamental use.
Interesting facts
The name tetrapetala highlights the four petals that characterize its small flowers, distinguishing it from related five-petaled species. The plant was originally described under the genus Niota before being transferred to its current genus by botanist George Don. Its seeds are well-adapted to survive in salt-laden coastal breezes, helping the species colonize sandy littoral soils.
Geography of distribution
- Madagascar
Sources
- Stated in Plants of the World Online (POWO).
- Stated in Global Biodiversity Information Facility (GBIF) Database.
- Stated in World Flora Online (WFO).
- Stated in Tropicos Database (Missouri Botanical Garden).