Schweinfurth's bitterwood (Hannoa schweinfurthii)
Silhouette: T. Michael Keesey
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Hannoa schweinfurthii - Features, Habitat and Applications
Inhabiting the transitional woodlands and gallery forests of Central and East Africa, Hannoa schweinfurthii adapts well to seasonal moisture variations. It typically grows along river valleys and moist savannah fringes.
Botanists study this species due to its bitter chemical constituents, which are characteristic of its taxonomic group. It serves as an important ecological component in riparian zones.
Taxonomy
- β ΡΠ°ΡΡΡΠ²ΠΎ Plantae
- β division Tracheophytes
- β subdivision Spermatophytes (Seed plants)
- β Angiosperms
- β mesangiosperms
- β eudicots
- β Superrosids
- β rosids
- β malvids
- β order Sapindales
- β family Simaroubaceae (Quassia family)
- β genus Hannoa (Hannoa Tree)
- β species Hannoa schweinfurthii (Schweinfurth's bitterwood)
Morphology
The botanical structure of this deciduous woody plant features several distinguishing traits:
- Leaves: Large, alternate, pinnately compound leaves bearing multiple pairs of oblong-obovate leaflets with entire margins.
- Flowers: Small, pale yellow or cream-colored flowers arranged in dense terminal or axillary panicles.
- Fruits: Smooth, fleshy drupes that are green initially, ripening to a dark purple hue and containing a single seed.
Applications
Various parts of the plant are utilized in local traditional practices and craftwork:
- Therapeutic Uses: Decoctions of the bark and roots are applied in traditional healing systems to combat malaria-like symptoms and digestional ailments.
- Material Use: The light-density wood is processed for making light crates, matches, or firewood in rural areas.
Interesting facts
Several botanical details make this species interesting to researchers:
- Chemical Defense: The presence of active bitter substances in the bark acts as a natural defense mechanism against browsing mammals and wood-boring insects.
- Ecological Indicator: Its presence often indicates fertile alluvial soils in wooded grasslands and forest borders.
Geography of distribution
- Central African Republic
- Democratic Republic of the Congo
- South Sudan
- Uganda
Sources
- Plants of the World Online (POWO), Royal Botanic Gardens, Kew.
- World Flora Online (WFO).
- Global Biodiversity Information Facility (GBIF).