Nees von Esenbeck, C.G.D. in Lehmann, J.G.C. (ed.) (1844), Oenothereae. Plantae Preissianae 1(1): 160 [tax. nov.]

• Type: "... ad flumen Cygnorum m. Majo a. 1839, Herb. Preiss. No. 1947"

Thompson, J. in George, A.S. (ed.) (1990), Onagraceae. Flora of Australia 18: 242 [secondary reference]

• Text: "The types ... have not been seen and their application is uncertain."
• Text: "...probably E. billardierianum subsp. billardierianum."

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - [doubtful taxonomic synonym]

doubtful taxonomic synonym of: Epilobium billardiereanum Ser. subsp. billardiereanum legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [doubtful taxonomic synonym]

doubtful taxonomic synonym of: Epilobium billardiereanum Ser. subsp. billardiereanum legitimate

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