| Name | Orbexilum pedunculatum Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| Placed in | Orbexilum |
| Contains | Orbexilum pedunculatum var. gracile (Torr. & A. Gray) J. W. Grimes |
| Citation | 1919 N. Amer. Fl. 24(1): 7 |
| Holdings | 130 Specimens held in the Harvard University Herbaria identified as Orbexilum pedunculatum Rydberg |
| Identification made in | [no date] (108), 1987 (18), 1988 (4) |