Pretty awesome evergreen fern because not only is it cool but it increases fast enough to make a statement in the garden before you are in your dotage and have forgotten why you bought this yet not in that rampaging acreage-eating Borg-assimilating manner that is sometimes described as "a good nursery plant".

Our collection in Mogecuo, Sichuan found growing in thick moss atop a large boulder shaded by Rhododendron bureavioides.  Pretty sure on the genus and obviously floundering on the species.  The genus has undergone recent revision and names may not yet be finalized.  Hardy for us and decidous.