| Name | Tropidocarpum gracile var. dubium (Davidson) Jepson |
| Authorship | (Davidson) Jepson |
| Rank | Variety |
| Placed in | Tropidocarpum gracile Hooker |
| GUID | urn:lsid:ipni.org:names:260213-2 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Tropidocarpum gracile var. dubium (Davidson) Jepson |
| Identification made in | [no date] (3) |