| Name | Calamagrostis lilloi f. grandiflora Hackel |
| Authorship | Hackel |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Calamagrostis lilloi Hackel |
| GUID | urn:lsid:ipni.org:names:40491-2 |
| Citation | 1911 Anales Mus. Nac. Hist. Nat. Buenos Aires ser. 3, 14: 102 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Calamagrostis lilloi f. grandiflora Hackel |
| Identification made in | 2005 (1) |