Backhouse, G.N. (April 2007), New combinations in the terrestrial orchid genera Caladenia R.Br. and Pterostylis R.Br. (Orchidaceae) for Victoria, Australia. The Victorian Naturalist 124: 124 [comb. nov.]

basionym: Arachnorchis osmera D.L.Jones legitimate

Backhouse, G.N., Bates, R.J., Brown, A.P. & Copeland, L.M. (1 March 2016), Checklist of the orchids of Australia including its island territories: 10, 68, 111 [secondary reference]

Council of Heads of Australasian Herbaria (28 February 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Arachnorchis osmera D.L.Jones legitimate

• APC Dist.: NSW, Vic

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 126 [secondary reference]

nomenclatural synonym: Arachnorchis osmera D.L.Jones legitimate common name: Pungent Spider Orchid [n/a]

Kosky, W. (5 October 2021), East Gippsland’s Clubbed Spider Caladenia (Orchidaceae: Caladeniinae). Muelleria 40: 17 [taxonomic synonym]

taxonomic synonym of: Caladenia montana G.W.Carr legitimate

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