Tags: Fern.

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.

Cystopteris_alpina_(Alpen-Blasenfarn)_IMG_3427.jpg
class
Leptosporangiate fern
division
Pteridophyte
family
Cystopteridaceae
genus
Cystopteris
kingdom
Plant
order
Eupolypods II

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