Fitzgerald, W.V. (1902), Notes on two new species of plants indigenous to the state of Western Australia. Journal of Proceedings of the Mueller Botany Society of Western Australia 1(9): 16-17 [tax. nov.]

• Type: "In the vicinity of Perth. – V.W.F. – Fl. Oct.–Nov."

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 161 [secondary reference]

Lowrie, A.S., Burbidge, A.H. & Kenneally, K.F. (17 December 1999), A taxonomic revision of the creeping triggerplants (Stylidiaceae: Stylidium sect. Appressae) from southern Australia. Nuytsia 13(1): 98-101, Fig. 2 APC [secondary reference]

taxonomic synonym: Stylidium adpressum var. patens F.L.Erickson & J.H.Willis legitimate

• APC Dist.: WA

• Etymology: The epithet cygnorum is form the Latin cygnus - swan, in reference to the Swan River district where this species is found.

Western Australian Herbarium (2011), FloraBase: the Western Australian Flora Version 2.6: - [secondary reference]

taxonomic synonym: Stylidium adpressum var. patens F.L.Erickson & J.H.Willis legitimate

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