| Name | Smittium boomerangum M. C. Williams & Lichtwardt |
| Authorship | M. C. Williams & Lichtwardt |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Smittium R. A. Poisson |
| Citation | 1990 Canad. J. Bot. 68(5): 1061 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Smittium boomerangum M. C. Williams & Lichtwardt |
| Identification made in | [no date] (1) |