Children (89 direct children, 99 direct and indirect children):
Cystopteris fragilis
(tree size 9)
Brittle bladder fern
Cystopteris sudetica
Cystopteris montana
Mountain bladderfern
Cystopteris alpina
Cystopteris viridula
Cystopteris dickieana
Cystopteris diaphana
Cystopteris bulbifera
Bulblet bladderfern
Cystopteris protrusa
Lowland bladderfern
Cystopteris tenuis
Upland brittle bladderfern
Cystopteris modesta
Cystopteris moupinensis
Cystopteris deqinensis
Cystopteris japonica
(tree size 1)
Cystopteris kansuana
Cystopteris tibetica
Cystopteris guizhouensis
Cystopteris tenuisecta
Cystopteris pellucida
Cystopteris laurentiana
St. lawrence bladderfern
Cystopteris membranifolia
Cystopteris reevesiana
Reeves' bladderfern
Cystopteris stipellata
Cystopteris villosa
Cystopteris utahensis
Utah bladderfern
Cystopteris millefolia
Cystopteris javensis
Cystopteris regia
Cystopteris wagneri
Cystopteris tennesseensis
Tennessee bladderfern
Cystopteris douglasii
Douglas' bladderfern
Cystopteris tenuifolia
Cystopteris tasmanica
Cystopteris sandwicensis
Cystopteris christii
Cystopteris affinis
Cystopteris perriniana
Cystopteris dalhousiana
Cystopteris crenata
Cystopteris obtusa
Cystopteris pontederae
Cystopteris abyssinica
Cystopteris termale
Cystopteris dimidiata
Cystopteris laciniata
Cystopteris almaatensis
Cystopteris pseudoregia
Cystopteris leptophylla
Cystopteris emarginata
Cystopteris tristis
Cystopteris maborasensis
Cystopteris anthriscifolia
Cystopteris ulei
Cystopteris retusa
Cystopteris apiiformis
Cystopteris emarginulata
Cystopteris atrovirescens
Cystopteris mexicana
Cystopteris azorica
Cystopteris blindi
Cystopteris vestita
Cystopteris filix-femina
Cystopteris rhaetica
Cystopteris brasiliana
Cystopteris rufescens
Cystopteris brevinervis
Cystopteris caucasica
Cystopteris chilensis
Cystopteris fumarioides
Cystopteris nivalis
Cystopteris comosa
Cystopteris gigantea
Cystopteris taygetensis
Cystopteris nodosa
Cystopteris novae-zealandicae
Cystopteris hirta
Cystopteris obovata
Cystopteris albescens
Cystopteris ×illinoensis
Cystopteris illinoensis
Cystopteris ×montserratii
Cystopteris filix-fragilis
Cystopteris altajensis
Cystopteris canariensis
Cystopteris squamata
Cystopteris chinensis
Cystopteris gureevae
Cystopteris subg. emarginatae
Cystopteris scandicina
Cystopteris schizochlamys