| Name | Cladium mariscus var. californicum S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Cladium mariscus R. Brown |
| Citation | 1880 Bot. California 2: 224 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cladium mariscus var. californicum S. Watson |
| Identification made in | [no date] (1) |
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