Markgraf, F. (1927), Apocynaceae. Nova Guinea 14: 290, t. 32 [tax. nov.]

• Type: Papua New Guinea, Madang Province. Minjem Tor., 10.xi.1908, R. Schlechter 17266 (holo: B; iso, BRI, L).

Forster, P.I. (19 October 1992), A taxonomic revision of Ichnocarpus (Apocynaceae) in Australia and Papuasia. Australian Systematic Botany 5(5): 539 [taxonomic synonym]

taxonomic synonym of: Ichnocarpus serpyllifolius (Blume) P.I.Forst. legitimate

Middleton, D.J. (1994), A revision of Ichnocarpus (Apocynaceae). Blumea 39(1/2): 84 [taxonomic synonym]

taxonomic synonym of: Ichnocarpus rhombifolius (Markgr.) D.J.Middleton legitimate

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