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upland brittle bladderfern

Scientific Name: Cystopteris tenuis

Family: Dryopteridaceae

Category: Fern

Growth: Forb/herb

Duration: Perennial

Other Names: NY (fragile fern)

       

Upland Brittle Bladderfern (Cystopteris tenuis)

The Upland Brittle Bladderfern, scientifically known as Cystopteris tenuis, is a delicate fern found in various habitats. This page provides information about its classification, distribution, and other interesting facts.

Considerations for Pets

  • The plant is commonly known as "brittle bladderfern," implying easily broken fronds. While not explicitly stated as toxic, ingestion of any plant material can cause gastrointestinal upset in pets.

Scientific Classification

  • Scientific Name: Cystopteris tenuis (Michx.) Desv.
  • Genus: Cystopteris Bernh.
  • Species: tenuis
  • Family: Dryopteridaceae

Synonyms and Common Names

  • Common Names: upland brittle bladderfern, brittle bladderfern, Mackay's fragile fern, Mackay’s brittle fern
  • Synonyms:
    • Cystopteris fragilis var. mackayi Lawson
    • Desv. (TSN 501961)

Distribution and Habitat

  • The Upland Brittle Bladderfern is found in upland habitats.
  • It is present in locations such as Garrett Co., Maryland, and is associated with upland formations in southern Britain.
  • It's also noted in northern England, particularly in upland limestone areas and woodland ravines.

Morphological Characteristics

  • Cystopteris fragilis (Brittle Bladderfern), a relative, is a deciduous fern growing to 0.2 m (0ft 8in) by 0.2 m (0ft 8in).

Related Species

  • Cystopteris utahensis - Utah bladderfern
  • Cystopteris tennesseensis - Tennessee bladderfern
  • Cystopteris bulbifera - Bulblet bladder fern
  • Cystopteris laurentiana - St. Lawrence bladderfern

Associations

  • Frequently found with other plants like procumbent pearlwort, roseroot, green spleenwort, mossy saxifrage, and others in specific habitats.
  • In North East England, Cystopteris fragilis grows in crevices in shady limestone walls.

Further Information

  • Discover Life provides information about the biology, natural history, ecology, identification, and distribution of Cystopteris tenuis.
  • USDA resources are available.
  • Rob Routledge at Sault College offers resources.