Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 246 [sp. no. 12] [tax. nov.]

• Type: "(M.) v.v."

Sprengel, C.P.J. (1824), Systema Vegetabilium Edn. 17, 1: 185 [replaced synonym]

replaced synonym of: Restio diffusus Spreng. legitimate

Briggs, B.G. & Johnson, L.A.S. (21 December 1998), New combinations arising from a new classification of non-African Restionaceae. Telopea 8(1): 29 [secondary reference]

• Type: "Type: Western Australia: 'King George IIId Sd', R. Brown Male (BM; iso P). The BM sheet bears labels 'King George IIId Sd' and 'Port Jackson', the latter stuck to a slip labelled '12' and 'Bennett 5860', both locality labels with 'Restio laxus' in Brown's hand. The material appears to represent a single collection of this Western Australian species, and not require lectotypification."

Briggs, B.G. & Johnson, L.A.S. (21 December 1998), New combinations arising from a new classification of non-African Restionaceae. Telopea 8(1): 29 [nomenclatural synonym]

nomenclatural synonym of: Leptocarpus diffusus (Spreng.) B.G.Briggs & L.A.S.Johnson nom. illeg., nom. superfl.

Briggs, B.G. & Johnson, L.A.S. in Meney, K.A. & Pate, J.S. (1 September 1999), A guide to a new classification of Australian Restionaceae and allied families. Australian Rushes: 52 [nomenclatural synonym]

nomenclatural synonym of: Chordifex laxus (R.Br.) B.G.Briggs & L.A.S.Johnson legitimate

Briggs, B.G. (2001), Leptocarpus laxus: the correct name for L. diffusus (Restionaceae). Taxon 50: 891 [basionym]

basionym of: Leptocarpus laxus (R.Br.) B.G.Briggs legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Leptocarpus laxus (R.Br.) B.G.Briggs legitimate

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