| Name | Guadua longifolia (Swallen) Davidse & R. W. Pohl |
| Authorship | (Swallen) Davidse & R. W. Pohl |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Guadua Kunth |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Guadua longifolia (Swallen) Davidse & R. W. Pohl |
| Identification made in | [no date] (2), 2004 (3), 2022 (7) |