| Name | Phragmites australis var. gigantissima (Cavanilles) Trinius ex Steudel |
| Authorship | (Cavanilles) Trinius ex Steudel |
| Rank | Variety |
| Placed in | Phragmites australis (Cavanilles) Trinius ex Steudel |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phragmites australis var. gigantissima (Cavanilles) Trinius ex Steudel |
| Identification made in | [no date] (1) |
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