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