heterotypic synonyms:
Hoya hainanensis Merr.;
protologue: Contr. Bot. India : 37 (1834)
537994Hoya ovalifolia Wight & Arn.
J. Paxton, J. Lindley, Paxton’s Fl. Gard., vol. 1 : t. 23 (1853) [L. Constans]
537994Hoya ovalifolia Wight & Arn.
H.A. van Rheede tot Drakestein, Hort. Ind. Malab., vol. 11 : t. 63 (1692)
537994Hoya ovalifolia Wight & Arn.
R. Wight, , Icon. Pl. Ind. Orient., vol. 3 : t. 847 (1846) [Rungia]