Provides taxonomic, conservation status and distribution information on plants and animals that are extinct, at risk of extinction, or near threatened.
Information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico
K. Bischoff, C. Firan, C. Kadar, W. Nejdl, und R. Paiu. ADMA '09: Proceedings of the 5th International Conference on Advanced Data Mining and Applications, Volume 5678 von Lecture Notes in Computer Science, Seite 31--42. Berlin, Heidelberg, Springer, (2009)
C. Marlow, M. Naaman, D. Boyd, und M. Davis. HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, Seite 31--40. New York, NY, USA, ACM, (2006)