| Scientific Name | Common Name | Image |
|---|---|---|
| Ophioglossum crotalophoroides | Bulbous Adder’s-tongue | |
| Ophioglossum engelmannii | Engelmann’s Adder’s-tongue, Limestone Adder’s-tongue | |
| Ophioglossum nudicaule | Slender Adder’s-tongue | |
| Ophioglossum petiolatum | Long-stem Adder’s-tongue | |
| Ophioglossum pusillum | Northern Adder’s-tongue | |
| Ophioglossum pycnostichum | Southern Adder’s-tongue |