External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:174623-2
- Publication
- Our Ferns in their Haunts; a Guide to all the Native Species. New York
- Collation
- 48, 316
- Family as entered in IPNI
- Ophioglossaceae
Links
- Nomenclatural link
- Ophioglossum engelmannii Prantl
- Same citation as
- Ophioglossum vulgatum f. engelmannii (Prantl) Clute