fragile ferns
Cystopteris
Cystopteris is a genus of ferns in the family Cystopteridaceae. These are known generally as bladderferns or fragile ferns. They are found in temperate areas worldwide. This is a very diverse genus and within a species individuals can look quite different, especially in harsh environments where they experience stress and remain small and stunted. Also, they hybridize easily with each other. Identifying an individual can be challenging. In general these are rhizomatous perennials which may grow...
12 branches of this genus, most-observed first
Cystopteris fragilis complex
complexCystopteris fragilis
Bulbifera clade
complexBulbifera clade
Cystopteris montana
complexCystopteris montana
Sudetica clade
complexSudetica clade
Cystopteris apiiformis
speciesCystopteris apiiformis
Cystopteris viridula
speciesCystopteris viridula
Cystopteris dickieana
speciesCystopteris dickieana
Cystopteris tibetica
speciesCystopteris tibetica
Cystopteris × christii
hybridCystopteris × christii
Illinois fragile fern
hybridCystopteris × illinoensis
Cystopteris × wagneri
hybridCystopteris × wagneri
Cystopteris guizhouensis
speciesCystopteris guizhouensis
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Cystopteris in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 58756.