The Biota of North America Program: North American Vascular Flora
Climate Types: http://www.bonap.org/Climate%20Maps/ClimateMaps.html
Lower 48 Climate Map: http://www.bonap.org/Climate%20Maps/climate48shadeA.png
BONAP
The Biota of North America Program: North American Vascular Flora
Climate Types: http://www.bonap.org/Climate%20Maps/ClimateMaps.html
Lower 48 Climate Map: http://www.bonap.org/Climate%20Maps/climate48shadeA.png
