bosuku
Peponium vogelii
The bosuku (Peponium vogelii) is a critically endangered climbing vine endemic to West African rainforests, characterized by its distinctive heart-shaped leaves with silver venation and small, fragrant white flowers that bloom in dense clusters. This species plays a crucial ecological role as a pollinator magnet for forest insects and provides essential nesting materials for several bird species through its fibrous bark.
28
Countries
Photo: iNaturalist: (c) breslauer, some rights reserved (CC BY-NC), uploaded by breslauer
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Cucurbitales
Family
Cucurbitaceae
Genus
Peponium
bosuku belongs to the family Cucurbitaceae, order Cucurbitales, within the Magnoliopsida class.
Species Profile
The bosuku (Peponium vogelii) is a critically endangered climbing vine endemic to West African rainforests, characterized by its distinctive heart-shaped leaves with silver venation and small, fragrant white flowers that bloom in dense clusters. This species plays a crucial ecological role as a pollinator magnet for forest insects and provides essential nesting materials for several bird species through its fibrous bark.
Peponium vogelii faces severe population decline primarily due to habitat destruction from agricultural expansion and logging activities across its limited range in West Africa. The species' restricted distribution makes it particularly vulnerable to localized threats, while collection pressure for traditional uses has further reduced wild populations.
Key Facts
Habitat & Distribution
Bosuku thrives in the understory of primary lowland rainforests between 200-800 meters elevation, where it climbs along riverbanks and forest edges with consistent moisture and filtered sunlight. The species requires specific host trees from the Fabaceae family for optimal growth and is particularly associated with areas where seasonal flooding creates nutrient-rich alluvial soils.
Threats
IUCN Red List: Critically Endangered
Peponium vogelii faces severe population decline primarily due to habitat destruction from agricultural expansion and logging activities across its limited range in West Africa. The species' restricted distribution makes it particularly vulnerable to localized threats, while collection pressure for traditional uses has further reduced wild populations.
Deforestation and logging
Habitat loss from agricultural expansion
Small population size and restricted range
Climate change impacts on forest ecosystems
Collection for traditional medicinal uses
Found in 28 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). bosuku (Peponium vogelii). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/bosuku