| Name | Onosma verruculosum I. M. Johnston |
| Authorship | I. M. Johnston |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Onosma Linnaeus |
| Citation | 1951 J. Arnold Arbor. 32: 356 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Onosma verruculosum I. M. Johnston |
| Identification made in | [no date] (1) |
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