Woodwardia fimbriata Sm.
  • Cycl. [A. Rees], (London ed.) 38: no.6. 1818
  • Giant chain fern

Cite taxon page as 'WFO (2023): Woodwardia fimbriata Sm. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001111079. Accessed on: 28 Mar 2023'

General Information

Stems forming a stout caudex covered with petiole bases, suberect; scales light brown, many, lanceolate-attenuate. Leaves monomorphic, evergreen, numerous in vaselike cluster, 40-170 cm. Petiole straw-colored, sometimes reddish at base; base thickened, with densely set orange scales. Blade pale green, elliptic-lanceolate, 25-100 cm, scaly-glandular upon emergence but soon glabrate. Pinnae not articulate to rachis, in 8-24 pairs, narrowly deltate to lanceolate, pinnatifid; proximal to middle pinnae 12-42 × 2.5-8 cm. Veins anastomosing to form single row of areoles, then free to margin. Sori short and broad, mostly curved and confined to costular areoles, deeply sunken into blades. Indusia cartilaginous and vaulted; cells thickened, retaining configuration after dehiscence of sporangia. 2 n = 68.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Rhizomes stout, short-creeping to suberect; fronds mostly erect to ascending; stipes (18-)30-60(-72) cm long, abundantly scaly at base, the scales brownish to orange-brown; blades pinnatepinnatifid, 25-100 cm long, broadest at or just below the middle, distal pinnae subcordate at the base; rachises sparsely scaly to usually glabrescent; pinnae (8-)10-24 pairs, the proximal pair distant from the rest, the lower and middle ones mostly 15-25 x 3.5-9 cm, pinnatifid, asymmetric at base by the reduction of the basalmost basiscopic lobe(s); pinna lobes broadly attached at base, narrowed gradually distally or with margins parallel for some distance to the acute to obtuse apex, frequently with margins of proximal pinnae crenate to deeply incised, the lobes spinulose along the margins; indument abaxially of sparse fibrillose scales less than 0.5 mm long on costules, veins, and leaf tissue, also of sparse, stramineous to whitish, linear-lanceolate scales to ca. 2 mm along costae, these often deciduous, laminae abaxially often with yellowish resinous glands and short-stipitate glands; sori usually confined to costular areoles, short-linear, (1-)2-5mm long, mostly 2-4 times as long as broad, straight or curved, deeply sunken into the blade tissue; indusia cartilaginous and vaulted, persisting and retaining form after sporangial dehiscence; spores 64 per sporangium; 2n=68 (Calif).

  • Provided by: [C].Memoirs of the New York Botanical Garden
    • Source: [
    • 2
    • ]. 


    Terrestrial, along streambanks and springs; 400-2100 m. Canada (British Columbia, especially Vancouver Is),USA (Ariz, Calif, Nev, Ore, Wash); Mexico.

  • Provided by: [C].Memoirs of the New York Botanical Garden
    • Source: [
    • 2
    • ]. 

    Other Local Names

    Giant chain fern

     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Memoirs of the 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.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online Data. 2021.
    • D CC0 1.0 Universal (CC0 1.0).