From Wikipedia, the free encyclopedia
Dryopteris expansa, alpine buckler fern or spreadin wid fern, is a species o fern native tae cuil temperate an subarctic regions o the Northren Hemisphere, sooth at heich altitudes in muntains tae Spain an Greece in soothren Europe, tae Japan in eastren Asie, an tae central Californie in North Americae. The species wis first describit frae Germany. It prefers cuil, moist mixed or evergreen forests an rock crevices on alpine slopes, eften growin on rottin logs an tree stumps an rocky slopes. It is characteristically riparian in naitur, an is especially associatit wi stream banks.
Dryopteris expansa | |
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Conservation status | |
![]() Secur (NatureServe) | |
Scientific classification | |
Kinrick: | Plantae |
Diveesion: | Pteridophyta |
Cless: | Pteridopsida |
Order: | Polypodiales |
Faimily: | Dryopteridaceae |
Genus: | Dryopteris |
Species: | D. expansa |
Binomial name | |
Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy | |
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