Onocleopsis is a genus of ferns in the family Onocleaceae containing only one extant species, Onocleopsis hintonii. Hassler & Swale. "Family Onocleaceae...
American and Asian populations being recognized as distinct varieties OnocleopsisOnocleopsis hintonii - found in a restricted range of wet mountain canyons...
molecular data shows that M. struthiopteris is more closely related to Onocleopsis and Onoclea (sensitive fern) than it is to M. orientalis and M. intermedia...