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hammock fern

Scientific Name: Blechnum occidentale

Family: Blechnaceae

Category: Fern

Growth: Forb/herb

Duration: Perennial

Other Names: FL (sinkhole fern)

       

Blechnum occidentale (Hammock Fern)

Blechnum occidentale, commonly known as the Hammock Fern, is a perennial fern belonging to the family Blechnaceae. It is also referred to as Swamp Fern and New World midsorus fern.

Considerations for Pets

  • This plant spreads by creeping rhizomes, potentially making it appealing for pets to dig around.

Taxonomy and Nomenclature

  • Scientific Name: Blechnum occidentale
  • Common Names: Hammock Fern, Swamp Fern, New World midsorus fern
  • Family: Blechnaceae
  • Synonyms:
    • Blechnum appendiculatum
    • Blechnum occidentale var. minor Hooker
    • Blechnum glandulosum Kaulfuss in Link

Distribution and Habitat

  • Critically imperiled in Florida and Texas.
  • Exotic in Georgia and Hawaii.
  • Possibly extirpated in Louisiana.
  • Also found in Mexico, Trinidad, the Caribbean islands and South America.
  • Prefers humus-rich, moist soil and filtered sunlight to shade.
  • Often found in shady, damp hammocks.

Morphological Characteristics

  • Perennial fern.
  • Grows to 12 to 18 inches tall.
  • Spreads by creeping rhizomes.
  • Large, dark green foliage.

Resources

  • NatureServe Explorer
  • Dave's Garden
  • RHS (Royal Horticultural Society)
  • Lady Bird Johnson Wildflower Center
  • eFloras.org