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Draws upon previous works and adds the results of the authors' combined field experiences of more than a century. More than 170 state records have been reported since the last list in 1993, resulting in a known flora of 2439 native and 435 naturalized taxa. A watch list includes several hundred introduced taxa with the potential for naturalization.
Family alignment, taxonomy, and nomenclature are up-dated and information on dozens of reported but unconfirmed taxa is appended. Other information includes common names, state and federal listings for taxa of conservation concern, the origin of non-native taxa, and synonymy. A brief history of the previous four checklists, dating from 1883, is included.
All entries are alphabetical under major categories (pteridophytes, gymnosperms, angiosperms--monocots and dicots). Alternative family and genus names are given in the alphabetical listings, making the catalog user friendly.