| Name | Scirpus lacustris var. occidentalis S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Scirpus lacustris Linnaeus |
| Citation | 1880 Bot. California 2: 218 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Scirpus lacustris var. occidentalis S. Watson |
| Identification made in | [no date] (2) |
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