Bruegmann, Marie M. 1999. New records of flowering plants on Midway Atoll. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 1998. Part 2: Notes. Bishop Museum Occasional Papers. 59:1-2.
Online details: http://hbs.bishopmuseum.org/pdf/op59.pdf