Thelypteris palustris subsp. pubescens (G. Lawson) Holub
Thelypteris palustris subsp. pubescens (G. Lawson) Holub is a synonym sensu IPNI of:
Thelypteris palustris var. pubescens (G. Lawson) Fernald, an accepted variety name sensu FNA Ed. Comm., 1993.