Maslin, B.R. (7 February 1978), Studies in the genus Acacia (Mimosaceae) - 8 A revision of the Uninerves - Triangulares, in part (the tetramerous species). Nuytsia 2(5): 320-322, Figs 18, 21 (map) [tax. nov.]

• Type: "About 4 km N of Wongan Hills towards Ballidu, Western Australia. ... 27 May 1976, B.R. Maslin 4111 (holo: PERTH; iso: CANB, K, MEL, NSW, NY, P, PERTH)."

• Etymology: "The specific epithet refers to the dark brown calyx which contrasts well with the yellow corolla."

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 88 [secondary reference]

Maslin, B.R. in Orchard, A.E. & Wilson, A.J.G. (ed.) (2001), Flora of Australia 11A: 522, Fig. 68M-O, Map 399 [secondary reference]

Maslin, B.R. (9 July 2001), Wattle - Acacias of Australia: - [secondary reference]

Pedley, L. (3 December 2003), A synopsis of Racosperma C.Mart. (Leguminosae: Mimosoideae). Austrobaileya 6(3): 480 [basionym]

basionym of: Racosperma phaeocalyx (Maslin) Pedley legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Racosperma phaeocalyx (Maslin) Pedley legitimate

• APC Dist.: WA

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