Black, J.M. (1928), Additions to the Flora of South Australia. No. 26. Transactions and proceedings of the Royal Society of South Australia 52: 229 [tax. nov.]

• Type: "Near Maitland and Ardrossan, Y.P.; Kangaroo Island."

Black, J.M. (1929), Bignoniaceae - Compositae. Flora of South Australia 4: 600 [secondary reference]

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 870 [secondary reference]

Jessop, J.P. (19 December 1977), Endangered species in the South Australian native vascular flora. Journal of the Adelaide Botanic Gardens 1(2): 137 [secondary reference]

Cooke, D.A. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Compositae (Asteraceae). Flora of South Australia Edn. 4, 3: 1482, fig. 670F [secondary reference]

• Lectotype: "O. microdisca as here circumscribed is endemic to KI. Black's type material at AD comprises disparate elements; those from Ardrossan and Maitland, Yorke Peninsula, are referrable to O. floribunda. The portion of the collection from White Lagoon, Kangaroo Island, 23.i.1883, J.G.O.Tepper s.n. mounted on a sheet of Black's sketches and notes is here designated the lectotype [AD 98540128, R.M.Barker, pers. comm Aug. 2017]; the other sheet of this collection (AD 96307020) is an isolectotype."

Threatened Species and Communities Section, Biodiversity Group, Environment Australia (8 July 1998), Endangered Species Protection Act 1992. Schedules 1, 2 & 3: 10 [secondary reference]

Barker, W.R., Barker, R.M., Jessop, J. & Vonow, H. (ed.) (18 March 2005), Census of South Australian Vascular Plants 5th Edition. Journal of the Adelaide Botanic Gardens Supplement 1: 331 [secondary reference]

• APC Dist.: SA

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

• APC Dist.: SA

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