I study plant evolution from a structural and developmental standpoint, and have developed methods of improving morphological characters in studies of plant evolution. I have also developed innovative methods of computer-based visual learning.

We have recently completed the first completely visual keys to a group of organisms, the Fagaceae of the Southeastern United States. Click here to go to the on-line visual key. 

See my research page for more information

Visiting Scientist

Visiting Scholar, Department of Integrative Biology, UC Berkeley: October 2007 – 2009

Visiting Scientist, South China Botanical Garden , Chinese Academy of Sciences: 2007 – 2010

Visiting Research Scientist, Royal Botanic Gardens , Sydney , Australia : January – May 2001


Intelligence Advanced Research Projects Activity (IARPA) Finder Program, through Applied Research Associates (ARA), Raleigh, NC. 2014-2015


Plant Diversity (Biology 422)
Plant Systematics (Biology 545)


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