Jones, D.L. & Copeland, L.M. (2016), Four new species of Orchidaceae from the New England Tablelands of New South Wales. Australian Orchid Review 81(3): 42-44 [tax. nov.]

• Type: "New South Wales, Mt Duval, Newholme Field Study Centre, 3 May 1993, D.L.Jones 12951, B.E.Jones & P.Metcalfe (holo CBG 9517103, iso NSW)."

• Etymology: "The Latin divaricatus, spread apart, in reference of the spreading free points of the lateral sepals."

Copeland, L.M. & Jones, D.L. (2016), New combinations in three recently described terrestrial orchids (Orchidaceae) from New South Wales. Australian Orchid Review 81(6): 63 [basionym]

basionym of: Pterostylis divaricata (D.L.Jones & L.M.Copel.) L.M.Copel. & D.L.Jones legitimate

Shaw, J.M.H. in Royal Horticultural Society (2017), Quarterly Supplement to the International Register of Orchid Hybrids (Sander's List) 125(1319): 59 [basionym]

basionym of: Pterostylis divaricata (D.L.Jones & L.M.Copel.) J.M.H.Shaw isonym

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Pterostylis divaricata (D.L.Jones & L.M.Copel.) L.M.Copel. & D.L.Jones legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 488 [secondary reference]

nomenclatural synonym: Pterostylis divaricata (D.L.Jones & L.M.Copel.) L.M.Copel. & D.L.Jones legitimate common name: Escarpment Greenhood [n/a]

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