Sprague, T.A. (1923), Apium leptophyllum. Journal of Botany, British and Foreign 61: 131 [primary reference]

Greuter, W.R. (ed.) (2000), International Code of Botanical Nomenclature, St. Louis, 2000. Regnum Vegetabile 138: 293 [orthographic variant]

orthographic variant of: Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P.Wilson legitimate

National Herbarium of New South Wales (2009), PlantNET Flora of New South Wales Online: - [orthographic variant]

orthographic variant of: Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P.Wilson legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [orthographic variant]

orthographic variant of: Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P.Wilson legitimate

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

orthographic variant of: Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P.Wilson legitimate

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