For Rayjacksonia
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C.
Lane, M. A., and R. L. Hartman. 1996. Reclassification of North American Haplopappus (Compositae: Astereae) completed: Rayjacksonia gen. nov. Amer. J. Bot. 83: 356-370.
Nesom, G.L. 2006z. Amphiachyris. In Flora of North America Editorial Committee. 2006b. Flora of North America north of Mexico. Volume 20, Magnoliophyta: Asteridae, part 6: Asteraceae, part 2. Oxford Univ. Press, New York, NY. 666 pp.
Nesom, G.L., D.J. Rosen, and S.K. Lawrence. 2013. Notes on variation and geography in Rayjacksonia phyllocephala (Asteraceae: Astereae). Phytoneuron 2013-53: 1-15.
Ward, D.B. 2012a. New combinations in the Florida flora III. Phytologia 94: 459-485.
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