Marsdenia gualanensis Donn.Sm. (Apocynaceae) is native to Costa Rica, El Salvador, Guatemala, Honduras, Mexico Central, Mexico Southeast, Mexico Southwest, Nicaragua. Flora of the World documents 1 occurrence across 1 country.
This name is a synonym
Specimens are listed under the accepted name Ruehssia gualanensis (Donn.Sm.) L.O.Alvarado
