| Name | Ischaemum digitatum var. polystachyum (J. Presl) Hackel |
| Authorship | (J. Presl) Hackel |
| Rank | Variety |
| Placed in | Ischaemum digitatum Brongniart |
| Citation | 1889 Monogr. Phan. [A.DC. & C.DC.] 6: 233 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Ischaemum digitatum var. polystachyum (J. Presl) Hackel |
| Identification made in | [no date] (5) |