Nuttall, T. (1834), A description of some of the rarer or little known plants indigenous to the United States, from the dried specimens in the herbarium of the Academy of Natural Sciences in Philadelphia. Journal of the Academy of Natural Sciences of Philadelphia 7(1): 113 [tax. nov.]

• Type: "West Florida, probably on the sandy coast. N.A. Ware, Esq."

Webb, L.J. (1948), Guide to the medicinal and poisonous plants of Queensland. Bulletin (CSIRO) 232: 157 [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 L.J.Webb, Bulletin (CSIRO) 232: 157 (1948), but not known to occur in Australia.

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