George, A.S. in McCarthy, P.M. (ed.) (1995), Appendix: Synaphea. Flora of Australia 16: 492 APC [tax. nov.]

• Type: 9 km S of Nannup on Pemberton Rd, W.A.., 34 03'S, 115 46'E, 21 Oct. 1993, A.S.George 17130;holo: PERTH; iso: CANB, K, MEL, NSW.

• APC Dist.: WA

• Etymology: "Epithet from the Greek otion (a little ear or auricle) and stigma (stigma), in reference to the small basal lobes of the stigma."

George, A.S. in McCarthy, P.M. (ed.) (1995), Synaphea. Flora of Australia 16: 301, Fig. 120, Map 343 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 851 [secondary reference]

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