Stephanostema is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1904. It contains only one known species, Stephanostema stenocarpum, found only in the Uzaramo District in eastern Tanzania.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0