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bluntleaf spleenwort

Scientific Name: Asplenium obtusifolium

Family: Aspleniaceae

Category: Fern

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Asplenium: A Diverse Genus of Spleenworts

The genus Asplenium, commonly known as spleenworts, encompasses a variety of fern species with distinct characteristics and habitats. This article explores several Asplenium species and related plants, highlighting their key features and ecological roles.

Considerations for Pets

  • Several species within the Asplenium genus have leaf tips that vary from blunt to sharp.

Considerations for Children

  • Several species within the Asplenium genus have leaf tips that vary from blunt to sharp.

Taxonomy and Nomenclature

  • Genus: Asplenium L.
  • Family: Aspleniaceae
  • Species Examples:
    • Asplenium tutwilerae (Tutwiler's spleenwort or Scott's fertile spleenwort)
    • Asplenium ebenoides (Scott's spleenwort, dragon tail fern or walking fern)
    • Asplenium resiliens (Blackstem spleenwort or little ebony spleenwort)
    • Asplenium trichomanes (Maidenhair spleenwort)
      • Asplenium trichomanes ssp. trichomanes
      • Asplenium trichomanes ssp. pachyrachis
    • Asplenium platyneuron (Ebony spleenwort)
    • Asplenium montanum (Mountain Spleenwort)
    • Asplenium viride (Green Spleenwort)
    • Asplenium billotii (Blunt-leaved or Lanceolate spleenwort)
    • Asplenium ceterach (Rusty-back fern)
    • Asplenium onopteris (Acute-leaved or Western black spleenwort)
    • Asplenium obtusifolium (Blunt-leaf Spleenwort)
  • Synonyms/Related Plants:
    • Asplenium x ebenoides (Scott's Spleenwort)
    • Athyrium pycnocarpon (Narrow-leaved spleenwort)
    • Deparia petersenii (Japanese false spleenwort)

Morphological Characteristics and Growth Habits

  • Some Asplenium species, like Asplenium tutwilerae, exhibit slight frond dimorphism, with fertile leaf blades being larger.
  • Asplenium ebenoides has leaf blades that are spreading to erect, with fertile fronds slightly taller than sterile fronds.
  • The stipe of Asplenium resiliens is straight and stiff.
  • Asplenium platyneuron has sterile fronds that are 2-6 inches long and evergreen.
  • Leaves of some species are lanceolate (awl-shaped), ascending to spreading, and not toothed.
  • Some varieties exhibit blunt-tipped scales.

Distribution and Habitat

  • Some species are found on limestone cliffs.
  • Asplenium species can be found growing in moist, shaded areas within rocks.
  • Southern Arizona Spleenworts are noted as NOT being Xerophytes (adapted to dry environments).

Quirky Facts

  • The text mentions a historical method of plant reproduction involving "passing the plant, under pressure, between a plate of soft lead from which an electrotype could be made" to create an image of Asplenium viride.