- Botrychium acuminatum — moonwort
- Botrychium ascendens — upward-lobed moonwort
- Botrychium boreale — northern moonwort
- Botrychium campestre — prairie dunewort
- Botrychium crenulatum — crenulate moonwort
- Botrychium dissectum — cutleaf grapefern
- Botrychium hesperium — western moonwort
- Botrychium lanceolatum — triangle grapefern
- Botrychium lineare — narrowleaf grapefern
- Botrychium lunaria — moonwort grapefern
- Botrychium matricariifolium — chamomile grapefern
- Botrychium minganense — Mingan's moonwort
- Botrychium montanum — mountain moonwort
- Botrychium mormo — little goblin moonwort
- Botrychium multifidum — leathery grapefern
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- Botrychium oneidense — bluntlobe grapefern
- Botrychium pallidum — pale moonwort
- Botrychium paradoxum — peculiar moonwort
- Botrychium pedunculosum — stalked moonwort
- Botrychium pinnatum — northern moonwort
- Botrychium pseudopinnatum — false daisyleaf grapefern
- Botrychium rugulosum — rugulose grapefern
- Botrychium simplex — least grapefern
- Botrychium spathulatum — spoonleaf moonwort
- Botrychium tunux
- Botrychium virginianum — rattlesnake fern
- Botrychium x watertonense
- Botrychium yaaxudakeit
- Ophioglossum pusillum — northern adder's-tongue
- Ophioglossum vulgatum — southern adder's-tongue
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