| Calycanthaceae | |
Butneria fertilis
| (Walter) Kearney | Bull. Torrey Bot. Club 21: 175 | 1894 |
| Calycanthaceae | |
Butneria florida
| (L.) Kearney | Bull. Torrey Bot. Club 21: 175 | 1894 |
| Calycanthaceae | |
Butneria mohrii
| Small | Fl. S.E. U.S. 528, 1331 | 1903 |
| Calycanthaceae | |
Butneria nana
| (Loisel.) Small | Fl. S.E. U.S. 528 | 1903 |
| Calycanthaceae | |
Butneria occidentalis
| (Hook. & Arn.) Greene | Erythea 1(10): 207 | 1893 |
| Calycanthaceae | |
Butneria praecox
| (L.) C.K. Schneid. | Dendr. Winterstud. 204, 241, f. 221i–o | 1903 |