Equisetum praealtum f. polystachyum (Prag.) M.Broun
, Index No. Amer. Ferns 94 (1938).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:294171-2
- Species Name
- Equisetum praealtum Raf., Fl. Ludov. 13 (1817).
- Publication
- Index to North American Ferns
- Collation
- 94
- Family as entered in IPNI
- Equisetaceae
Links
- Nomenclatural link
- Equisetum hyemale f. polystachyum Prager ex Gilbert
- Same citation as
- Equisetum praealtum f. polystachyum (Prager) M.Broun