Cunningham, A. (1839), Florae insularum Novae Zelandiae precursor. Annals of Natural History 3: 31 [tax. nov.]

Raven, P.H. & Raven, T.E. (1976), The genus Epilobium (Onagraceae) in Australasia: a systematic and evolutionary study. New Zealand Department of Scientific and Industrial Research Bulletin 216: 168-172, Figs 77, 78 (map) [secondary reference]

• Type: "East of lake between Waimate Mission Station and the great forest of Hokianga, North Auckland, New Zealand, 1834, Richard Cunningham (K)."

nomenclatural synonym: Epilobium nummulariifolium var. pedunculare (A.Cunn.) Hook.f. legitimate taxonomic synonym: Epilobium linnaeoides Hook.f. legitimate

Du Puy, D.J. & Orchard, A.E. (1993), Onagraceae. Flora of Australia 50: 242 APC [secondary reference]

nomenclatural synonym: Epilobium nummulariifolium var. pedunculare (A.Cunn.) Hook.f. legitimate taxonomic synonym: Epilobium linnaeoides Hook.f. legitimate

• APC Dist.: MI

Mosyakin, S.L., de Lange, P.J., Antonenko, S.I. & Klimovych, N.B. (31 August 2020), Types and other historical specimens of Allan and Richard Cunningham's taxa of Epilobium and Fuchsia (Onagraceae) from New Zealand in the Turczaninow Herbarium at the National Herbarium of Ukraine (KW). Ukrainian Botanical Journal 77(4): 261-262 [secondary reference]

• Text: "... KW0010030063... Isolectotype?"
• Text: "...K000742582 (https://plants.jstor.org/stable/10.5555/al.ap.specimen.k000742582 and http://specimens.kew.org/herbarium/K000742582) cited in JSTOR Global Plants as the type of Epilobium caespitosum Hausskn. (also considered a synonym of E. pedunculare; see Melville, 1960), seems to be the real type of E. pedunculare. It is dated by 1834 and was collected by Richard Cunningham "between | Waimaté | & the great forest | of Hokianga | past [east?] the lake | New Zealand", which quite closely matches the protologue. We accept this specimen as the standing lectotype that first Allan (1961) and then Raven and Raven (1976) had in mind."

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