| Ophioglossum crotalophoroides | IPNI record (IK) | |
| Ophioglossum crotalophoroides | IPNI record (IK) | |
| Ophioglossum crotalophoroides | IPNI record (GCI) | |
| Ophioglossum crotalophoroides | Walter | IPNI record (GCI) |
| Ophioglossum crotalophoroides | Walter | IPNI record (GCI) |
| Ophioglossum crotalophoroides | Walter | IPNI record (GCI) |
| Ophioglossum crotalophoroides | Walter | IPNI record (GCI) |
| Ophioglossum crotalophoroides | Walter | IPNI record (GCI) |
| TAMU Image Gallery | GOOGLE (Ophioglossum crotalophoroides) |
| NUMBER OF GENERA IN Ophioglossaceae: 4 | KEW LIST: Ophioglossaceae |
| Botrychium | Helminthostachys | Ophioderma | Ophioglossum 13 |