St.John, H. (1962), Revision of the genus Pandanus Stickman, Part 13. Pandanus in the Northern Territory, Australia. Pacific Science; a quarterly devoted to the biological and physical sciences of the pacific region 16(4): 421, 423, fig. 147 [tax. nov.]

• Type: "Australia, Northern Territory, Koolpinyah, 12°25′S., 131°13′E., small or large communities near edge of swampy grassland, 9 m alt., 10 Sept. 1946, S.T. Blake 16,964 (BRI)."

• Etymology: "The new epithet is formed from the Latin semi, half, armatus, armed, and is given in allusion to the leaf margins which are only partly armed with prickles."

Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 218 [secondary reference]

Stone, B.C. (7 February 1978), Notes on the genus Pandanus (Pandanaceae) in Western Australia. Nuytsia 2(4): 249, Fig. 6B [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 28 [secondary reference]

Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 58 [secondary reference]

Wilson, A.J.G. in Wheeler, J.R. (ed.) (1992), Pandanaceae. Flora of the Kimberley Region: 1252-1254, Fig. 354E [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [doubtful taxonomic synonym]

doubtful taxonomic synonym of: Pandanus spiralis R.Br. legitimate

Wilson, A.J.G. in Wilson, A.J.G. (ed.) (2011), Pandanaceae. Flora of Australia 39: 224 [taxonomic synonym]

taxonomic synonym of: Pandanus spiralis R.Br. legitimate

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Pandanus spiralis R.Br. legitimate

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