For Palafoxia
Baltzer, E.A. 1944. A monographic study of the genus Palafoxia and its immediate allies. Ann. Missouri Bot. Gard. 31: 249-277.
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C.
Strother, J.L. 2006hhh. Palafoxia. In Flora of North America Editorial Committee. 2006c. Flora of North America north of Mexico. Volume 21, Magnoliophyta: Asteridae, part 6: Asteraceae, part 3. Oxford Univ. Press, New York, NY. 616 pp.
Turner, B.L., and M.I. Morris. 1976. Systematics of Palafoxia (Asteraceae: Heleniae). Rhodora 78: 567-628.
Cite as...