Title from title screen, displayed from the Help menu. At head of title on opening screen: Biota of North America Program. Edition statement from "About the Synthesis" screen, displayed from the Help menu. FAQ available at related website.
Summary:
A database on the taxonomy, nomenclature, phytogeography, and biological attributes of the North American vascular flora. It covers more than 28,000 species, subspecies, and varieties of native and naturalized vascular plants in North America north of Mexico. The information contained here is an extensive update of Dr. John T. Kartesz' 1994 A Synonymized checklist of the vascular flora of the United States, Canada, and Greenland, 2nd ed. Distribution maps at the state and province level are provided for all accepted taxa, including families and genera (a total of more than 35,000 maps). More than 37,000 synonyms are listed and more than 150 fields of biological attribute information are provided for all 35,000+ taxa.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.