| Name | Onosma multiramosum Handel-Mazzetti |
| Authorship | Handel-Mazzetti |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Onosma Linnaeus |
| Contains | Onosma multiramosum var. mekongensis I. M. Johnston |
| Citation | 1925 Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 41: 166 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Onosma multiramosum Handel-Mazzetti |
| Identification made in | [no date] (1) |