For Heterotheca
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C.
Gandhi, K.N., and R.D. Thomas. 1989. Asteraceae of Louisiana. Sida, Bot. Misc. 4: 1-202.
Levy, F. 2020. Morphology and distribution of Heterotheca camporum var. glandulissima and its occurrence on shale substrates in northeastern Tennessee. Phytoneuron 2020-89: 1-11. Published 18 December 2020. ISSN 2153 733X
Nesom, G.L. 2019e. Taxonomic summary of Heterotheca (Asteraceae: Astereae): Part 1, sects. Heterotheca and Ammodia. Phytoneuron 2019-64: 1-44. Published 23 December 2019. ISSN 2153 733X
Nesom, G.L. 2020e. Taxonomic summary of Heterotheca (Asteraceae: Astereae): Sect. Chrysanthe. Phytoneuron 2020-68: 1-359 [in 5 parts: 1-74; 75-134; 135-216; 217-319; 320-359]. Published 12 October 2020. ISSN 2153 733X
Semple, J.C. 1983. Range expansion of Heterotheca camporum (Compositae: Astereae) in the southeastern United States. Brittonia 35: 140-146.
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.
Semple, J.C. 2004. Miscellaneous nomenclatural changes in Astereae (Asteraceae). Sida 21: 759-765.
Semple, J.C. 2006e. Heterotheca. 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.
Wagenknecht, B.L. 1960. Revision of Heterotheca, section Heterotheca (Compositae). Rhodora 62: 61-76, 97-107.
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