Click here to choose the groups of genera to include in the guide

Eastern United States and Canada ONLY - Click here for the genera found East of the Mississippi
Selecting this option will give you the traditional discoverlife guide to the genera of the Eastern United States. It is strongly recommended at this time that you choose this option - the western genera will not resolve yet.

United States and Canada - Click here for ALL genera found in the entire US and Canada
Rob Jean is currently expanding the guide to include genera that occur in the Western United States. This will add 42 genera to the current 65 genera in the Eastern US. Until this is completed you should choose the recommended character state of eastern genera.