Meisner, C.D.F. in Lehmann, J.G.C. (ed.) (1848), Proteaceae. Plantae Preissianae 2(2-3): 260 [tax. nov.]

• Type: "Swan River, Drummond coll. III. no. 277 (sine fl.)"

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 71 [secondary reference]

Diels, F.L.E. & Pritzel, E.G. (6 December 1904), Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 35(2-3): 164 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 63 [secondary reference]

Lamont, B., Keighery, B., Penny, L. & Wallace, J. (1987), A numeric, geographic and structural analysis of the Hakea falcata group (Proteaceae). Botanical Journal of the Linnean Society 94: 438-439 [secondary reference]

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 359 (map) [secondary reference]

taxonomic synonym: Hakea trinervis Meisn. legitimate

• Etymology: "From Latin, ambiguus, doubtful. Meissner was concerned that this species was very close to some forms of H. undulatal."

Barker, R.M., Haegi, L. & Barker, W.R. in Wilson, A.J.G. (ed.) (1999), Hakea. Flora of Australia 17B: 128, Fig. 16E, Map 118 APC [secondary reference]

taxonomic synonym: Hakea trinervis Meisn. nom. inval., nom. nud. taxonomic synonym: Hakea trinervis Meisn. legitimate

• APC Dist.: WA

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