Desfontaines, R.L. (1798), Flora Atlantica 1: 277, t. 78 [tax. nov.]

• Type: "Habitat in arvis argillosis prope Mascar."

Ewart, A.J., White, J. & Wood, B. (1911), Contributions to the Flora of Australia, No. 16. Proceedings of the Royal Society of Victoria 23(2): 295 [secondary reference]

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - APC [secondary reference]

• APC Comment: A North American taxon, recorded by A.J.Ewart et al., Proc. Roy. Soc. Victoria 23(2): 295 (1911) as “Probably only a garden escape”, and not known to be established in Australia.

---