Onocleaceae
(tree size 54)
Blechnaceae
(tree size 1343)
Aspleniaceae
(tree size 2583)
Spleenworts
Thelypteridaceae
(tree size 4628)
Marsh fern family
Woodsiaceae
(tree size 203)
Cystopteridaceae
(tree size 149)
Diplaziopsidaceae
(tree size 14)
Hemidictyaceae
(tree size 8)
Rhachidosoraceae
(tree size 11)
Athyriaceae
(tree size 2234)
Desmophlebiaceae
(tree size 3)