Hoya liddleana (Accession Number NS08-100) was discovered in Papua New Guinea, Milne Bay Province, Alotau, trail towards Gamopupu waterfall, 20 m, in lowland disturbed primary forest in 2008. It was vouchered in cultivation by Torill Nyhuus, and published as a species March 26, 2016 by Rodda and Simonsson.