External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:104809-2
- Publication
- Our Native Ferns and how to Study Them, with Synoptical Descriptions of the North American Species... Edition 6
- Collation
- 119
- Family as entered in IPNI
- Dennstaedtiaceae
Links
- Nomenclatural link
- Polypodium fragile L., Sp. Pl. 2: 1091 (1753).
- Same citation as
- Filix fragilis Underw., Native Ferns, ed. 6 119 (1900).