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CCDB → Bryophytes → Amblystegiaceae → Hygrohypnum
| Taxon name | Status | Median (n) |
| Hygrohypnum duriusculum (D. Not.) D. W. Jamieson | Accepted | 11 |
| Hygrohypnum eugyrium (Schimp.) Loeske | Accepted | 8 |
| Hygrohypnum luridum (Hedw.) Jenn. | Accepted | 10 |
| Hygrohypnum ochraceum (Turner) Loeske | Accepted | 10 |
| Hygrohypnum polare (Lindb.) Loeske | Accepted | 11 |
| Hygrohypnum dilatatum (Wilson) Loeske | Synonym of Hygrohypnum duriusculum (D. Not.) D. W. Jamieson | 11 |
| Hygrohypnum eugyrium | Synonym of Hygrohypnum eugyrium (Schimp.) Loeske | 8 |
| Hygrohypnum eugyrium (Br. & Sch.) Loeske | Synonym of Hygrohypnum eugyrium (Schimp.) Loeske | 8 |
| Hygrohypnum luridum | Synonym of Hygrohypnum luridum (Hedw.) Jenn. | 10 |
| Hygrohypnum ochraceum (. L. Loeske | Synonym of Hygrohypnum ochraceum (Turner) Loeske | 10 |
| Hygrohypnum ochraceum (Turn.) Loeske | Synonym of Hygrohypnum ochraceum (Turner) Loeske | 10 |