References

Barkley, T.M., L. Brouillet, and J.L. Strother. 2006. Asteraceae, part 1. 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