Barrett, R.L. & Barrett, M.D. (3 November 2015), Twenty-seven new species of vascular plants from Western Australia. Nuytsia 26: 41-43, Fig. 9 APC [tax. nov.]

• Type: "Kings Park bushland, near Eucalyptus Carpark, West Perth, Western Australia, 26 June 2014, R.L. Barrett RLB 9055 (holo: PERTH 08613893; iso: CANB, K, MEL, NE, NSW)."

common name: Oldham's Sword Sedge [n/a]

• APC Dist.: WA

• Etymology: "The epithet recognises the work of John Oldham (1907–1999), landscape architect for the City of Perth, who drew up some of the original landscaping plans that influenced the design of the Western Australian Botanic Garden at Kings Park, along with many other well-known features of the capital city, including the Swan River foreshore, the Narrows Interchange, Sir Charles Gairdner Hospital and Parliament House."

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 194-195, photos 5-8 [secondary reference]

Parker, C.M. & Percy-Bower, J.M. (31 March 2016), Updates to Western Australia’s vascular plant census for 2015. Nuytsia 27: 4 [secondary reference]

common name: Oldham's Sword-sedge [n/a]

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