| Name | Lagerstroemia subcostata var. ambigua Pampanini |
| Authorship | Pampanini |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Lagerstroemia subcostata Koehne |
| Citation | 1910 Nuovo Giorn. Bot. Ital. n.s. 17: 676 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lagerstroemia subcostata var. ambigua Pampanini |
| Identification made in | [no date] (2) |