Cystopteris fragilis
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Polypodiales
(unranked): Eupolypods II
Family: Cystopteridaceae
Genus: Cystopteris

10-20: see text

Cystopteris is a genus of ferns. 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 in rocky areas or in soil. Their leaves are multiply pinnate, in that each leaflet is divided into smaller parts. The sori are usually rounded and are covered in an inflated bladder-like indusium.

Species include:


External links

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Cystopteris — Cystopteris …   Wikipédia en Français

  • Cystoptĕris — Bernh. (Blasenfarn), Gattung der Polypodiazeen, zartkrautige Farne mit rundlichen, zerstreuten Fruchthäufchen (s. Tafel »Farne II«, Fig. 7). Sieben Arten in den gemäßigten Klimaten, besonders der nördlichen Erdhälfte, unter ihnen drei deutsche. C …   Meyers Großes Konversations-Lexikon

  • Cystopteris — Cystoptĕris Bernh., Blasenfarn, Farngattg. der Polypodiazeen. Mehrere Arten Zierpflanzen …   Kleines Konversations-Lexikon

  • Cystopteris — Cystopteris …   Wikipédia en Français

  • Cystopteris — Blasenfarne Zerbrechlicher Blasenfarn (Cystopteris fragilis) Systematik Unterreich …   Deutsch Wikipedia

  • Cystopteris — ID 25073 Symbol Key CYSTO Common Name bladderfern Family Dryopteridaceae Category Fern Division Pteridophyta US Nativity N/A US/NA Plant Yes State Distribution AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME …   USDA Plant Characteristics

  • Cystopteris — noun chiefly small perennial rock ferns: bladder ferns; in some classifications placed in Polypodiaceae • Syn: ↑genus Cystopteris • Hypernyms: ↑fern genus • Member Holonyms: ↑Dryopteridaceae, ↑family Dryopteridaceae, ↑Athyr …   Useful english dictionary

  • cystopteris — cys·top·ter·is …   English syllables

  • Cystopteris protrusa — C. protrusa fronds Scientific classification Kingdom: Plantae …   Wikipedia

  • Cystopteris tenuis — Scientific classification Kingdom: Plantae Division …   Wikipedia