| Name | Timonius trichanthus var. dolichophyllus Merrill & L. M. Perry |
| Authorship | Merrill & L. M. Perry |
| Rank | Variety |
| Placed in | Timonius trichanthus Merrill & L. M. Perry |
| Citation | 1945 J. Arnold Arbor. 26(3): 239 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Timonius trichanthus var. dolichophyllus Merrill & L. M. Perry |
| Identification made in | [no date] (2), 1983 (1) |