| Name | Oxystegus crassicostatus D. H. Norris & T. J. Koponen |
| Authorship | D. H. Norris & T. J. Koponen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oxystegus |
| Citation | 1989 Acta Bot. Fenn. 137: 90 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oxystegus crassicostatus D. H. Norris & T. J. Koponen |
| Identification made in | [no date] (1) |
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