genus Osmunda - type genus of the Osmundaceae

genus Leptopteris, Leptopteris - including some ferns sometimes placed in genus Todea

genus Todea, Todea - a genus of delicate ferns belonging to the family Osmundaceae

fern family - families of ferns and fern allies

Filicales, order Filicales, order Polypodiales, Polypodiales - true (leptosporangiate) ferns