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Asplenium ×curtissii

Scientific Name: Asplenium ×curtissii

Family: Aspleniaceae

Category: Fern

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Asplenium × curtissii

Also known as Curtiss' Spleenwort, Asplenium × curtissii is a rare hybrid fern with a fascinating history.

Considerations for Pets

  • The provided text mentions the plant's roots, stems, and scales, but does not specifically discuss toxicity or safety concerns for pets.

Taxonomy and Nomenclature

  • Scientific Name: Asplenium × curtissii Underw.
  • Common Name: Curtiss' Spleenwort
  • Family: Aspleniaceae (Spleenwort Family)
  • Synonyms: Asplenium scalifolium, Asplenium subtile, Asplenium plenum, Asplenium verecundum
  • Taxonomic Serial No.: 17341
  • Asplenium × curtissii Underw. (pro sp.) is also noted, indicating its origin as a hybrid species ("pro sp.").

Distribution and Habitat

  • Asplenium × curtissii is known recently only from Citrus County in Florida.
  • Old collections exist from Alachua, Marion, and Sumter counties in Florida.
  • It is considered a native and endemic species to Florida.
  • The plant has a Wetland Status of US–UPL and FL–UPL, indicating it typically grows in uplands, but can tolerate wetland conditions.
  • One observation was from Limestone Island, Levy County, Florida.

Ecological Role

  • The text indicates that Asplenium is known for its hybridization capacity, especially within the Appalachian hybrid complex.
  • Asplenium × curtissii arose as a cross (AABjB2) between a sexual 2x species, A. abscissum (AA), and a "sterile" 3x hybrid.
  • Ruffled spleenwort is a very rare hybrid between Asplenium abscissum and Asplenium curtissii.

Morphological Characteristics

  • Roots are proliferous (producing offshoots).
  • Stems are erect and unbranched.
  • Scales are blackish.

Genetic Information

  • Asplenium curtissii has a chromosome number of n=54.
  • The hybrid origin of Asplenium × curtissii involves specific genome contributions from its parent species (AABjB2).

Conservation Status

  • In Florida, Asplenium × curtissii is listed as Endangered.

Further Information

  • Discover Life has a page dedicated to the biology, natural history, ecology, identification, and distribution of Asplenium × curtissii.
  • Tropicos provides information and resources about this species.
  • The Florida Natural Areas Inventory (FNAI) also has information available.
  • Information is available through the Integrated Taxonomic Information System (ITIS) with TSN 17341.