⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Osmunda cinnamomea in version 1.1 of The Plant List.
This name is a synonym of Osmunda cinnamomea f. frondosa .
The record derives from Tropicos which reports it as a synonym (record 26605107
) with original publication details: Annual Rep. State Geol. Surv. New York 4: 196 196 1840.