⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50333363, with some changes.

Osmunda claytoniana var. dubia Grout is a synonym of Osmunda claytoniana f. dubia (Grout) Clute

This name is a synonym of Osmunda claytoniana f. dubia (Grout) Clute.

The record derives from Tropicos which reports it as a synonym (record 50333363) with original publication details: Working List of North American Pteridophytes 13, 28 13 1901.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:177092-2.