| Name | Hypnum cupressiforme subsp. imponens (Hedwig) Boulay |
| Authorship | (Hedwig) Boulay |
| Rank | Subspecies |
| Placed in | Hypnum cupressiforme Hedwig |
| Holdings | 290 Specimens held in the Harvard University Herbaria identified as Hypnum cupressiforme subsp. imponens (Hedwig) Boulay |
| Identification made in | [no date] (290) |
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