Definition that contains sonia
- dicksoniaceae tree ferns: genera Dicksonia, Cibotium, Culcita, and Thyrsopteris elegans
- family dicksoniaceae tree ferns: genera Dicksonia, Cibotium, Culcita, and Thyrsopteris elegans
- cercidium spiny shrubs or small trees sometimes placed in genus Parkinsonia: paloverde
- genus cercidium spiny shrubs or small trees sometimes placed in genus Parkinsonia: paloverde
- culcita includes some plants usually placed in e.g. genus Dicksonia: terrestrial ferns resembling bracken; tropical America; Malaysia to Australia and Polynesia; southwestern Europe and Atlantic islands
- genus culcita includes some plants usually placed in e.g. genus Dicksonia: terrestrial ferns resembling bracken; tropical America; Malaysia to Australia and Polynesia; southwestern Europe and Atlantic islands