| Name | Sideritis marcellii Elias & Sennen |
| Authorship | Elias & Sennen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Sideritis |
| Citation | 1911 Bull. Acad. Int. Géogr. Bot. 21: 120 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sideritis marcellii Elias & Sennen |
| Identification made in | [no date] (1) |