References
For Bradburia
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar
Harms, V.L. 1974. A preliminary conspectus of Heterotheca section Chrysopsis (Compositae). Castanea 39: 155-165. Google Scholar
Nesom, G.L. 1991a. Union of Bradburia with Chrysopsis (Asteraceae: Astereae) with a phylogenetic hypothesis for Chrysopsis. Phytologia 71: 109-121. Google Scholar
Nesom, G.L. 2000b. Generic conspectus of the tribe Astereae (Asteraceae) in North America and Central America, the Antilles, and Hawaii. Sida Botanical Miscellany 20: 1-100. Google Scholar
Semple, J.C. 1981. A revision of the goldenaster genus Chrysopsis (Nutt.) Ell. nom. cons. (Compositae-Astereae). Rhodora 83: 323-384. Google Scholar
Semple, J.C. 1996. A revision of Heterotheca sect. Phyllotheca (Nutt.) Harms (Compositae: Astereae): the prairie and montane goldenasters of North America. Univ. of Waterloo Biological Series 37. Google Scholar
Semple, J.C. 2006b. Bradburia. 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. Google Scholar
Semple, J.S., and C.C. Chinnappa. 1984. Observations on the cytology, morphology, and ecology of Bradburia hirtella (Compositae--Astereae). Syst. Bot. 9:95-101. Google Scholar