Lady Fern Order
Scientific classification
Kingdom: Plantae
Division: Pterophyta
Class: Pteridopsida
Order: Athyriales
Families
  Athyriaceae - Lady Fern Family
  Blechnaceae - Chain Fern Family
  Onocleaceae - Sensitive Fern Family
  Woodsiaceae - Cliff Fern Family
  Cystopteridaceae - Fragile Fern Family
  Thelypteridaceae - Female Fern Family

This arrangement is strongly supported by genetic evidence. The Athyriaceae and the Blechnaceae are especially close, as are the Onocleaceae and Woodsiaceae.