| Name | Bolboschoenus maritimus subsp. affinis (Roth) T. Koyama |
| Authorship | (Roth) T. Koyama |
| Rank | Subspecies |
| Placed in | Bolboschoenus maritimus (Linnaeus) Palla |
| Citation | 1979 Brittonia 31: 284 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Bolboschoenus maritimus subsp. affinis (Roth) T. Koyama |
| Identification made in | [no date] (1) |