Dryopteris clintoniana (D.C.Eaton) Dowell
  • Proc. Staten Isl. Assoc. Arts and Sci. 1: 64. 1906 ; & Benedict, Torreya 9. 139. 1909
  • Clinton's wood fern, dryoptère de clinton

Cite taxon page as 'WFO (2023): Dryopteris clintoniana (D.C.Eaton) Dowell. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001109078. Accessed on: 27 Mar 2023'

General Information

Leaves dimorphic, 45--100 × 12--20 cm; fertile leaves dying back in winter; sterile leaves 1--several, smaller, green through winter. Petiole 1/4--1/3 length of leaf, scaly at least at base; scales scattered, tan, sometimes with dark brown center. Blade green, lanceolate, with nearly parallel sides, pinnate-pinnatifid, herbaceous, not glandular. Pinnae of fertile leaves twisted out of plane of blade but not fully perpendicular to it, narrowly elongate-deltate; basal pinnae narrowly elongate-deltate, much reduced; basal pinnules longer than or equal to adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal; pinnule margins serrate or biserrate, with spiny teeth. Sori midway between midvein and margin of segments. Indusia lacking glands. 2 n = 246.

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

    Sterile and fertile lvs similar or only slightly different, evergreen, to 13 dm; petiole to 3.5 dm, scaly at the base, the scales ovate, ca 1 cm, concolorous or with darker brown center; blade lanceolate, commonly 1.5–2 dm wide, pinnate-pinnatifid, ± acuminate; pinnae mostly 10–18 pairs, the larger ones mostly 7–11 × 2–4 cm, short-petiolulate, lance-oblong, acuminate, the 10–15 pairs of segments oblong, 10–23 × 6–9 mm, obtuse, incurved-serrate or biserrate, the teeth subspinulose; veins 5–7 pairs per segment; basal pinnae relatively short and broad-based, mostly 1.5–2.5 times as long as wide; 2n=246, thought to be an alloploid of nos. 3 [Dryopteris cristata (L.) A. Gray] and 5 [Dryopteris goldiana (Hook.) A. Gray]. Swamps and wet woods; Me. and Que. to Wis., s. to N.Y., n. N.J., n. Pa., n. O., and n. Ind.

  • Provided by: [C].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 2
    • ]. 

    Other Local Names

    Clinton's wood fern, dryoptère de clinton


     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
    Manual of Vascular Plants of Northeastern US and Canada
    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).
    World Flora Online Data. 2021.
    • E CC0 1.0 Universal (CC0 1.0).
    World Flora Online Data. 2021.
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • G CC0 1.0 Universal (CC0 1.0).