Spirolobium is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1889. It includes only one known species, Spirolobium cambodianum, native to Southeast Asia (Vietnam, Laos, Cambodia, Thailand, Malaysia, Borneo).
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