| Name | Vitex siamica F. N. Williams |
| Authorship | F. N. Williams |
| Rank | Species |
| Placed in | Vitex Linnaeus |
| Citation | 1905 Bull. Herb. Boissier sér. 2, 5: 431 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Vitex siamica F. N. Williams |
| Identification made in | [no date] (5) |