| Name | Sagittaria rigida Pursh |
| Authorship | Pursh |
| Rank | Species |
| Placed in | Sagittaria Linnaeus |
| GUID | urn:lsid:ipni.org:names:58566-1 |
| Holdings | 156 Specimens held in the Harvard University Herbaria identified as Sagittaria rigida Pursh |
| Identification made in | [no date] (156) |
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