The current checklist of Tennessee vascular plants, published in 1993, and the two-volume atlas of distribution maps of the state’s flora, published in 1993 and 1997 (and now available electronically), were compared and reconciled with volume 2 (pteridophytes and gymnosperms, published 1993) and volume 3 (dicots: Magnoliophyta: Magnoliidae and Hamamelidae, published 1997) of the Flora of North America (FNA). Numerous differences were found, including: (1) 18 taxa documented in the checklist/atlas that were not credited to Tennessee by FNA; (2) 15 FNA-listed taxa that apparently are additions to the Tennessee flora; (3) seven checklist/atlas taxa that were reduced to synonymy by FNA; (4) 40 checklist/atlas taxa that, in FNA, were changed taxonomically or nomenclatorially, transferred to another family, or some other discrepancy occurs. All changes are presented in tabular form.