External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:35289-2
- Publication
- Our Ferns in their Haunts; a Guide to all the Native Species. New York
- Collation
- 62, 315
- Family as entered in IPNI
- Ophioglossaceae
Links
- Nomenclatural link
- Botrychium tenebrosum A.A.Eaton, Fern Bull. 7: 8 (1899).
- Same citation as
- Botrychium matricariifolium var. tenebrosum (A.A.Eaton) Clute