Osmunda L.
Terrestrial ferns. Rhizomes thick, erect, covered with persistent stipe bases. Fronds 1-2-pinnate, covered with hairs when very young, wholly or partially dimorphic; veins free. Sporangia in dense clusters, replacing the lamina of some or all the pinnae on fertile fronds. Spores trilete.
6-10 spp., wet habitats of temperate and tropical regions. Naturalised sp. 1.
