Wilson, Paul G. (10 December 1970), A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1): 31-32, Fig. 5 (4) [tax. nov.]

• Type: "AD 96415113, South Australia, lower Mt. Lofty Range, roadside scrub nr. Finnis River, 25. viii. 1963 D.N. Kraehenbuehl 906."

pro parte misapplication: Eriostemon difformis var. teretifolius Benth. legitimate by Bentham, G. (30 May 1863), Flora Australiensis 1: 335 misapplication: Eriostemon difformis A.Cunn. ex Endl. legitimate by Tate, R. (1890), A Handbook of the Flora of Extratropical South Australia: 24 misapplication: Eriostemon brevifolius A.Cunn. ex Endl. legitimate by Black, J.M. (1924), Casuarinaceae - Euphorbiaceae. Flora of South Australia 2: 342, Fig. 154F misapplication: Eriostemon gracilis Graham legitimate by Ewart, A.J. (1931), Flora of Victoria: 705 misapplication: Eriostemon brevifolius A.Cunn. ex Endl. legitimate by Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 498, Fig. 664F

• Etymology: "angustus - narrow, folium = leaf"

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 192 [secondary reference]

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Rutaceae. Flora of South-eastern Queensland 1: 465 [secondary reference]

Wilson, Paul G. (16 September 1998), A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12(2): 246 [basionym]

basionym of: Philotheca angustifolia (Paul G.Wilson) Paul G.Wilson legitimate

Bayly, M.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Eriostemon. Flora of Victoria 4: 181 [secondary reference]

pro parte misapplication: Eriostemon gracilis Graham legitimate by Ewart, A.J. (1931), Flora of Victoria: 705 pro parte misapplication: Eriostemon difformis A.Cunn. ex Endl. legitimate by Willis, J.H. (1973), A Handbook to Plants in Victoria Edn. 2, 2: 333 common name: Narrow-leaf Wax-flower [n/a]

Jessup, L.W. (2003), Flora of South-eastern Queensland Volume 1 Changes to names or status of taxa: - [misapplied]

misapplied to: Philotheca sporadica (Bayly) Paul G.Wilson legitimate by Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Rutaceae. Flora of South-eastern Queensland 1: 465

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Philotheca angustifolia (Paul G.Wilson) Paul G.Wilson legitimate

Wilson, Paul G. in Wilson, A.J.G. (ed.) (2013), Philotheca. Flora of Australia 26: 380 [nomenclatural synonym]

nomenclatural synonym of: Philotheca angustifolia (Paul G.Wilson) Paul G.Wilson legitimate

---