| Name | Poa williamsii Nash |
| Authorship | Nash |
| Rank | Species |
| Placed in | Poa Linnaeus |
| Citation | 1901 Bull. New York Bot. Gard. 2(6): 156 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Poa williamsii Nash |
| Identification made in | 1935 (1) |
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