| Species | Change | Specimens |
|---|---|---|
| Viburnum plicatum Thunberg | Added as established non-native species. | |
| Euthamia floribunda Greene | Appropriate name for Euthamia hirtipes based on priority. | Longbottom 23780 NY |
| Euthamia hirtipes (Fernald) Sieren | Now placed in synonomy - E. floribunda is the earlier name. | |
| Euthamia weakleyi Nesom | Newly described by Nesom (2021b) | |
| Spiranthes bightensis M.C. Pace | Newly described by Pace (2021) | Longbottom 6897 PH |
| Spiranthes odorata (Nuttall) Lindley | Excluded - based on confusion with S. bightensis |
| Names being evaluated | ||
|---|---|---|
| Sericocarpus asteroides Britton, Sterns & Pogggenb. | Specimen cited changed. | Earle 2255 PH |
| Seriocarpus caespitosus Nesom | Newly described by Nesom (2021c) | Norton s.n. MARY |
| Tiarella stolonifera Nesom | Newly described by Nesom (2021a) |