| Name | Plantago sandwicense subsp. st.-johnii G. L. Webster |
| Authorship | G. L. Webster |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Plantago sandwicense A. Gray |
| Citation | 1951 Pacific Sci. 5: 69 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Plantago sandwicense subsp. st.-johnii G. L. Webster |
| Identification made in | [no date] (1) |
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