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. This catalog will be indispensable for professionals, students, and all others involved with or interested in the Tennessee vascular flora. In addition, the catalog provides the foundation for further work.

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