| Name | Baptisia ×sulphurea Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| Placed in | Baptisia |
| Citation | 1878 Bot. Gaz. (London) 3(8): 65 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Baptisia ×sulphurea Engelmann |
| Identification made in | [no date] (2) |