Phytogeographic updates to the Synthesis of the North American Flora

In our attempt to produce a comprehensive floristic summary of the vascular flora of North America, BONAP has nearly completed a phytogeographic atlas for all of the known vascular plant taxa native or naturalized within North America. The county level distribution for these plants within the United States is based upon some three to four million vouchered county level records. One of the main features of this exciting publication will be the county level maps. A sample follows.

STATE COLOR KEY Species present in state and native	COUNTY COLOR KEY Species present and not rare	Species extinct
Species present in state and exotic	Species present and rare	Species noxious
Species not present in state	Species extirpated (historic)	Species exotic and present

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Last updated December 19, 2005, by Matthew Smith.