Wight, R. & Arnott, G.A.W. in Wight, R. (1834), Contributions to the Botany of India: 42 [tax. nov.]

• Type: None cited

Forster, P.I. (14 February 1992), A taxonomic revision of Heterostemma Wight & Arn. (Asclepiadaceae: Stapelieae) in Australia and the western Pacific. Australian Systematic Botany 5(1): 72 [secondary reference]

• Type: H. tanjorense Wight & Arn.

taxonomic synonym: Symphysocarpus Hassk. legitimate taxonomic synonym: Oianthus Benth. legitimate

Forster, P.I. in Orchard, A.E. (ed.) (1996), Asclepiadaceae. Flora of Australia 28: 278-280 APC [secondary reference]

• Type: Type: H. tanjorense Wight & Arn. ex Wight

• APC Dist.: NT, Qld

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 41 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 404 [secondary reference]

---