Leichhardtia liisae (common name - Large-flowered milk vine)[1] is a climbing plant in the Apocynaceae family, endemic to north-eastern New South Wales.[2]
It was first described in 1989 by John Beaumont Williams as Marsdenia liisae.[3] In 2021, in a major revision of the Marsdenia genus, Paul Forster placed the species in Leichhardtia, giving the accepted species name, Leichhardtia liisae.[4]