| Glyceria grandis S. Watson | |
| Publ. & Syn. | Glyceria maxima auct., non (Hartm.) Holmb. (1919). |
| Chromosomes | (1) 20 (2x, x = 10). - Canada, U.S.A. - Several reports. (2) 28 (4x, x = 7). - Nielsen (1939). |
| Geography | North American. |
| Parent taxon | Glyceria R. Br. |
| Child taxa |
Glyceria grandis var. komarovii Kelso |
| PAF ID | 344503 |