Rarely available and sometimes confused with Onoclea sensibilis, this is in fact a monotypic genus closely related to and once included under Woodwardia. From Eastern N America, as far north as Nova Scotia, this favours moist, acid, sandy soils in the wild and bears deciduous dimorphic fronds, ie of two different types. The pinnatifid sterile fronds emerge with a bronzy tint and reach 60cm long but arch over and the fertile are up 70cm tall and are more vertical. For a moist humusy shady site and lime-free (probably) soil.