| Name | Isoetes echinospora var. robusta Engelmann |
| Authorship | Engelmann |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Isoetes echinospora Durieu |
| GUID | urn:lsid:ipni.org:names:130516-2 |
| Citation | 1882 Trans. Acad. Sci. St. Louis 4: 380 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Isoetes echinospora var. robusta Engelmann |
| Identification made in | [no date] (1) |
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