| Name | Orbexilum simplex (Nuttall ex Torrey & A. Gray) Rydberg |
| Authorship | (Nuttall ex Torrey & A. Gray) Rydberg |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Orbexilum |
| GUID | urn:lsid:ipni.org:names:175708-2 |
| Holdings | 26 Specimens held in the Harvard University Herbaria identified as Orbexilum simplex (Nuttall ex Torrey & A. Gray) Rydberg |
| Identification made in | [no date] (17), 1987 (8), 1988 (1) |