Y. R.  Ling, Humphries, C. J., and Shultz, L., ?The Genus Artemisia L.?, in Flora of China, vol. 20, Fof China E.  Committee, Ed. St. Louis Science Press. In prep. (Asteraceae), Beijing, and Missouri Botanical Garden Press., 2006.

K.  Bremer and Humphries, C. J., ?Generic monograph of the Asteraceae-Anthemideae?, Bull. Nat. Hist. Mus., London, vol. 23, no. 2, pp. 1 - 177, 1993.

C. J.  Humphries, ?A taxonomic revision of the genus Anacyclus L. (Compositae: Anthemideae)?, Bull. Brit. Mus. (Nat. Hist.), Bot, vol. 7, pp. 83 - 142, 1979.