Species Search
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Brittle Bladderfern
(Cystopteris fragilis)
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Cystopteris fragilis is a species of fern known by the common names brittle bladder-fern and common fragile fern. It can be found worldwide, generally in shady, moist areas. The leaves are up to 30 or 40 centimeters long and are borne on fleshy petioles. Each leaf is divided into many pairs of leaflets, each of which is subdivided into lobed segments. The underside of the leaf has many rounded sori containing the sporangia.
(Wikipedia)
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Lowland Brittle Fern
(Cystopteris protrusa)
Info
Cystopteris protrusa is a common fern of North America, commonly known as the lowland bladderfern, lowland brittle fern or lowland fragile fern.
(Wikipedia)
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Mackay's Fragile Fern
(Cystopteris tenuis)
Info
Cystopteris tenuis is sometimes known as Mackay's bladder fern or Mackay's fragile fern. It was long considered to be a part of the superspecies for fragile ferns, as Cystopteris fragilis (L.) Bernh. var. mackayi Lawson.
(Wikipedia)
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Alpine Bladder-Fern
(Cystopteris alpina)
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Cystopteris alpina is a fern in the family Cystopteridaceae. It is closely related to C. fragilis and has been treated as conspecific with that species by many authors. However, according to the Flora of North America, it is an allopolyploid species of hybrid origin, with Cystopteris montana as one probable parent. It is known to hybridise with C. fragilis in Scandinavia and intermediate plants possibly of hybrid origin are known from North Wales.
(Wikipedia)
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Diaphanous Bladder-Fern
(Cystopteris diaphana)
Info
Cystopteris diaphana, the greenish bladder-fern or diaphanous bladder-fern, is a fern in the family Cystopteridaceae.
(Wikipedia)
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