1. The problems with hybrids: setting conservation guidelines
2. Baldwin B. Robichaux R. 1995. Historical biogeography and ecology of the Hawaiian silversword alliance (Compositae): new molecular phylogenetic perspectives, pp. 259–287. In Funk V. Wagner W. Hawaiian biogeography evolution on a hot spot archipelago Washington, DC, Smithsonian Institution Press,.
3. Baldwin B.G. 1996. Phylogenetics of the California tarweeds and the Hawaiian Silversword Alliance (Madiinae; Heliantheae sensu lato). Compositae: Systematics London, UK, Royal Botanic Gardens.
4. Baldwin B.G. 1997. Adaptive radiation of the Hawaiian silversword alliance: congruence and conflict of phylogenetic evidence from molecular and non-molecular investigations, pp. 103–128. In Givnish T. Sytsma K.J. Molecular evolution and adaptive radiation Cambridge, UK, Cambridge University Press,.
5. Baldwin B.G. Sanderson M.J. 1998. Age and rate of diversification of the Hawaiian silversword alliance (Compositae). Proc. Natl. Acad. Sci. U.S.A 9: 9402–9406.