Meisner, C.D.F. in Candolle, A.L.P.P. de (ed.) (1856), Proteaceae. Prodromus Systematis Naturalis Regni Vegetabilis 14(1): 321 [tax. nov.]

• Type: "Sieber herb. Nov.-Holl. n. 41! ex part, Gaudich.! in herb. DC., Hügel! in herb. Mart., etc.)."

Johnson, L.A.S. & McGillivray, D.J. (28 July 1975), Conospermum Sm. (Proteaceae) in Eastern Australia. Telopea 1(1): 64 [taxonomic synonym]

taxonomic synonym of: Conospermum longifolium Sm. subsp. longifolium legitimate

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 142 [secondary reference]

• Comment: Cited as "C. longifolium Sm. subsp. C. lingulatum Meissner".

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 142 [taxonomic synonym]

taxonomic synonym of: Conospermum longifolium Sm. subsp. longifolium legitimate

Bennett, E.M. in McCarthy, P.M. (ed.) (1995), Conospermum. Flora of Australia 16: 257 [taxonomic synonym]

taxonomic synonym of: Conospermum longifolium subsp. angustifolium (Meisn.) L.A.S.Johnson & McGill. legitimate

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