| Name | Eschscholzia quadrangularis Greene |
| Authorship | Greene |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Eschscholzia Chamisso |
| GUID | urn:lsid:ipni.org:names:97329-2 |
| Citation | 1905 Pittonia 5: 264 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Eschscholzia quadrangularis Greene |
| Identification made in | [no date] (1) |
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