Gymnosiphon longistylus
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Dioscoreales
- family: Burmanniaceae
- genus: Gymnosiphon
- species: Gymnosiphon longistylus
Santo António
Príncipe
Sao Tome And Principe
Freetown
Western Area
Sierra Leone