North American serpentine flora
In S. Davis, V. Heywood, O. Herrerea-MacBride, J. Villa-Lobos, and A. Hamilton (eds.), Centres of Plant Diversity: A guide and strategy for their conservation
World Wildlife Fund and the IUCN-World Conservation Union publ.
McCarten, N. 1997
Plant Speciation and the development of serpentine soil habitats.
: Paper presented at the Donald and Sylvia McLaughlin Natural Reserve Research Symposium. University of California at Davis. May 2, 1997