Cronquist, A.J. (1947), Notes on the Compositae of the Northeastern United States-V. Astereae. Bulletin of the Torrey Botanical Club 74(2): 150 [comb. et stat. nov.]

basionym: Erigeron pusillus Nutt. legitimate

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Asteraceae. Flora of South-eastern Queensland 2: 526 [secondary reference]

nomenclatural synonym: Erigeron pusillus Nutt. legitimate taxonomic synonym: Conyza parva Cronquist legitimate

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

taxonomic synonym of: Conyza canadensis (L.) Cronquist legitimate

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

taxonomic synonym of: Erigeron canadensis L. legitimate

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