| Name | Tropidocarpum gracile var. scabriusculum (Hooker) Greene |
| Authorship | (Hooker) Greene |
| Rank | Variety |
| Placed in | Tropidocarpum gracile Hooker |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Tropidocarpum gracile var. scabriusculum (Hooker) Greene |
| Identification made in | [no date] (2) |