| Name | Ulmus densa var. bubyriana Litvinov |
| Authorship | Litvinov |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Ulmus densa Litvinov |
| Citation | 1922 Sched. Herb. Fl. Ross. 8: 23 |
| Holdings | 18 Specimens held in the Harvard University Herbaria identified as Ulmus densa var. bubyriana Litvinov |
| Identification made in | [no date] (9), 2013 (9) |