Nees von Esenbeck, C.G.D. in Lehmann, J.G.C. (ed.) (1846), Cyperaceae. Plantae Preissianae 2(1): 92 [tax. nov.]

• Type: In solo sublimoso-arenoso planitiei prope praedium rusticum cl. Viveach, York, Apr. a. 1840. Herb. Preiss. No. 1798.

Bentham, G. (March 1878), Flora Australiensis 7: 393 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 128 [secondary reference]

Gardner, C.A. (1930), Part I. Pteridophyta-Proteaceae. Enumeratio Plantarum Australiae Occidentalis: 14 [secondary reference]

Kükenthal, G. (1941), Vorarbeiten zu einer Monographie der Rhynchosporoideae. X. Repertorium Specierum Novarum Regni Vegetabilis 50: 40-41 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 42 [secondary reference]

Rye, B.L. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Cyperaceae. Flora of the Perth Region 2: 887 [secondary reference]

Barrett, R.L. & Wilson, K.L. (2012), A review of the genus Lepidosperma Labill. (Cyperaceae: Schoeneae). Australian Systematic Botany 25: 245, Fig. 22 [secondary reference]

• Lectotype: (here designated): WESTERN AUSTRALIA: in solo sublimoso-arenoso planitiei prope praedium rusticum cl. Viveach, York [in sunny elevated sandy plain near the country estate of Viveash, [S of] York], 17 Apr. 1840, Preiss [Pl. Preissianae No. 1798] (lecto: LD; isolecto: BM 000901250, G, MEL 2288218, MEL 2288219 p.p., NY 00051302, P 00603284).

Council of Heads of Australasian Herbaria (2012), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Lepidosperma costale Nees var. costale legitimate

• APC Dist.: WA

Barrett, R.L. (6 November 2012), Description of six Lepidosperma species (Cyperaceae) based on type specimens. Nuytsia 22(5): 313-316, Figs 6d (map), 13, 14 [secondary reference]

• Etymology: "From the Latin costa (rib, side), perhaps in reference to the fine striations on the culms, particularly evident on some of the dead leaves on the type specimen."

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