| Name | Helianthus subrhomboideus Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Helianthus |
| GUID | urn:lsid:ipni.org:names:278040-2 |
| Citation | 1900 Mem. New York Bot. Gard. 1: 419 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Helianthus subrhomboideus Rydberg |
| Identification made in | 1955 (1) |
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