| Name | Psychotria diffusa var. diffusa |
| Authorship | |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Psychotria diffusa Merrill |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Psychotria diffusa var. diffusa |
| Identification made in | [no date] (2) |