Mueller, F.J.H. von (April 1859), Fragmenta Phytographiae Australiae 1(5): 137 [tax. nov.]

• Type: "Ad montem East Mount Barren ubi etiam Grevillea rigidissima nascitur."

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 68 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 62 [secondary reference]

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 278 (map), 344 [secondary reference]

• Etymology: "From Greek macros, large, and Latin, stylus, a style."

McGillivray, D.J & Makinson, R.O. (1993), Grevillea, Proteaceae: a taxonomic revision: 236 [taxonomic synonym]

taxonomic synonym of: Grevillea tripartita Meisn. legitimate

Olde, P.M. & Marriott, N.R. (1995), The Grevillea Book 3: 10-11 (Plate 2, fig., map) [secondary reference]

common name: Mount Barren Grevillea [n/a]

Makinson, R.O. in Wilson, A.J.G. (ed.) (2000), Appendix: Grevillea. Flora of Australia 17A: 496 [secondary reference]

• Lectotype: East Mt Barren, WA, s.d. coll. unknown; lecto: MEL, fide D.McGillivray & R.O.Makinson, Grevillea 445 (1993); isolecto: ?K.

Makinson, R.O. in Wilson, A.J.G. (ed.) (2000), Appendix: Grevillea. Flora of Australia 17A: 496 [basionym]

basionym of: Grevillea tripartita subsp. macrostylis (F.Muell.) Makinson legitimate

Christenhusz, M.J.M., Fay, M.F. & Byng, J.W. (9 February 2018), GLOVAP Nomenclature Part 1. The Global Flora: a practical flora to vascular plant species of the world 4: 85 [basionym]

basionym of: Hakea macrostylis (F.Muell.) Christenh. & Byng legitimate

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