Cystopteris tenuis


Cystopteris tenuis
Cystopteris tenuis
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Blechnales
Family: Cystopteridaceae
Genus: Cystopteris
Species: C. tenuis
Binomial name
Cystopteris tenuis
(Michx.) Desv.

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.

C. tenuis in native habitat

This species is an allotetraploid of hybrid origin (see Cystopteris hybrid complex. The parent diploid species are Cystopteris protrusa and the hypothesized Cystopteris hemifragilis, believed to be an extinct species.

Mackay's fragile fern grows on rock or in scree, generally in sheltered spots, in the northeastern United States.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Cystopteris tenuis — ID 25096 Symbol Key CYTE7 Common Name upland brittle bladderfern Family Dryopteridaceae Category Fern Division Pteridophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, AZ, CO, CT, DC, DE, IA, IL, IN, KS, KY, LA, MA, MD,… …   USDA Plant Characteristics

  • Cystopteris tenuis (Michx.) Desv. — Symbol CYTE7 Common Name upland brittle bladderfern Botanical Family Dryopteridaceae …   Scientific plant list

  • Cystopteris tenuis (Michx.) Desv. — Symbol CYTE7 Common Name upland brittle bladderfern Botanical Family Dryopteridaceae …   Scientific plant list

  • Cystopteris — fragilis Scientific classification Kingdom …   Wikipedia

  • Cystopteris — Cystopteris …   Wikipédia en Français

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

  • Cystopteris hybrid complex — The fern genus Cystopteris is one that widely hybridizes internally. North American Cystopteris Hybrids The diploid parent species within the genus include: C. bulbifera C. hemifragilis (an undiscovered or extinct diploid) C. protrusa C.… …   Wikipedia

  • Cystopteris bulbifera — Bulblet fern Cystopteris bulbifera in bottomland forest in Shades State Park, Indiana Scientific classification Kingdom …   Wikipedia

  • Cystopteris — Cystopteris …   Wikipédia en Français

  • Cystopteris ×illinoensis R.C. Moran [bulbifera × tenuis] — Symbol CYIL Botanical Family Dryopteridaceae …   Scientific plant list