Asplenium rhizophyllum L.
  • Sp. Pl.
  • Walking fern, doradille ambulante

Cite taxon page as 'WFO (2020): Asplenium rhizophyllum L. Published on the Internet; Accessed on: 04 Jun 2020'

General Information

Roots not proliferous. Stems erect or ascending, usually unbranched; scales dark brown throughout, narrowly deltate, 2--3 × (0.2--)0.5--1 mm, margins entire. Leaves monomorphic but fertile leaves generally larger than sterile leaves. Petiole reddish brown at base, becoming green distally, dull but sometimes lustrous at base, 0.5--12 cm, 0.1--1.5 times length of blade; indument of dark brown, narrowly deltate scales at base, of minute, club-shaped hairs distally. Blades highly variable in size and shape, even on 1 plant, narrowly deltate to linear-lanceolate, simple, 1--30 × 0.5--5 cm, leathery, sparsely pubescent, hairs more numerous abaxially than adaxially; blade base cordate, auriculate, or occasionally hastate, auricles rarely attenuate and radicant; margins entire to sinuate, rarely irregularly incised; apex rounded to very long-attenuate and, if attenuate, generally rooting at tip. Rachis green, dull, nearly glabrous. Veins obscure, anastomosing to form areoles near midrib. Sori numerous, scattered somewhat irregularly over blade, often joined at vein junctures. Spores 64 per sporangium. 2 n = 72.

  • Provided by: [C].Flora of North America @
    • Source: [
    • 1
    • ]. 

    "Rhizome ca 2 mm thick, the scales lance-subulate, entire, dark brown, iridescent; petiole flattened, winged, green except at the dark brown scaly base; blade simple, 5–30 cm, undulate-margined, generally cordate at base with rounded auricles, to 3 cm wide at base, tapering gradually to a flagelliform rooting tip; veins anastomosing, the areoles mostly in 2 rows, the outer veinlets free; 2n=72. Mostly on rocks, esp. limestone; Que. and Ont. to Minn., s. to Ga. and Okla. (Camptosorus r.)"

  • Provided by: [B].New York Botanical Garden
    • Source: [
    • 2
    • ]. 

    Other Local Names

    Walking fern, doradille ambulante


     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association