Leafsnap is the first in a series of electronic field guides being developed by researchers from Columbia University, the University of Maryland, and the Smithsonian Institution. This free mobile app uses visual recognition software to help identify tree species from photographs of their leaves.
Now available in the iTunes App Store:
Uploaded to YouTube by SmithsonianVideos
http://www.youtube.com/watch?v=KCpR4JTEy4c
Retrieved Wednesday 13th July 2011 6:55 pm EDT