External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:104879-2
- Species Name
- Filix-mas rigida Farw., Amer. Midl. Naturalist 12: 256 (1931).
- Publication
- American Midland Naturalist; devoted to natural history, primarily that of the prairie states.
- Collation
- 12: 256
- Family as entered in IPNI
- Dryopteridaceae
Links
- Nomenclatural link
- Nephrodium rigidium var. americanum Hook.
- Same citation as
- Filix-mas rigida var. americana (Hook.) Farw.