References
For Krigia
Chambers, K.L. 2004. Taxonomic notes on Krigia (Asteraceae). Sida 21: 225-236. Google Scholar
Chambers, K.L., and R.J. O'Kennon. 2006. Krigia. In Flora of North America Editorial Committee. 2006a. Flora of North America north of Mexico. Volume 19, Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford Univ. Press, New York, NY. 579 pp. Google Scholar
Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar
Kim, K.-J., and B.L. Turner. 1992. Systematic overview of Krigia (Asteraceae - Lactuceae). Brittonia 44: 173-198. Google Scholar