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Dryopteris marginalis (L.) A.Gray

Marginal woodfern (en)

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Rhizome ascending to erect; lvs firm, evergreen; petiole 1–2 dm, with a tuft of slender, concolorous, pale reddish-brown scales at the base and smaller, scattered scales above; blade lance-oblong, (2–)3–4.5 × 1–2.5 dm, broadest just above the base, glabrous but with a few hair-like scales, pinnate-pinnatifid to bipinnate, with 15–20 pairs of pinnae, the larger pinnae with mostly 10–15(–18) pairs of segments, the larger segments mostly (0.7–)1–2(–2.5) cm, with 6–9 pairs of veins; sori submarginal, near the sinuses between the teeth; 2n=82. Woods and talus-slopes; Nf. to S.C. and Ga., w. to s. Ont., Minn., Kans., and Okla.
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Leaves monomorphic, green through winter, 30--100 × 10--25 cm. Petiole 1/4--1/3 length of leaf, scaly at base; scales in dense tuft, pale tawny. Blade bluish green, ovate-lanceolate, pinnate-pinnatifid to 2-pinnate at base, leathery, not glandular. Pinnae ± in plane of blade, lanceolate; basal pinnae lanceolate, slightly reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule longer than basal acroscopic pinnule; pinnule margins shallowly crenate to nearly entire. Sori near margin of segments. Indusia lacking glands. 2 n = 82.
A fern.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 0.4 - 0.65
Mature height (meter) 0.75 - 0.8
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Damp woods and swamps. Rocky, wooded slopes and ravines, edges of woods, stream banks and roadbanks, and rock walls at elevations of 50-1500 metres.
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It is a temperate plant. It suits hardiness zones 3-8.
Light 3-6
Soil humidity 5-7
Soil texture 1-4
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) 4-7

Usage

Uses environmental use medicinal
Edible -
Therapeutic use Antirheumatic (Internal) (root), Emetic (root), Toothache (unspecified), Poison (unspecified), Vermifuge (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -33
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Dryopteris marginalis habit picture by Serena boettcher (cc-by-sa)

Leaf

Dryopteris marginalis leaf picture by Serena boettcher (cc-by-sa)
Dryopteris marginalis leaf picture by Serena boettcher (cc-by-sa)
Dryopteris marginalis leaf picture by Serena boettcher (cc-by-sa)

Distribution

Dryopteris marginalis world distribution map, present in Canada, Greenland, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:30064660-2
WFO ID wfo-0001107306
COL ID 37WXR
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Dryopteris marginalis f. traillae Polystichum marginale Filix marginalis Nephrodium marginale Thelypteris marginalis Polypodium marginale Aspidium marginale Thelypteris marginalis f. elegans Nephrodium marginale f. bipinnatifidum Nephrodium marginale f. davenportii Nephrodium marginale f. tripinnatifidum Aspidium marginale f. davenportii Thelypteris marginalis f. davenportii Dryopteris marginalis f. elegans Dryopteris marginalis f. tripinnatifida Aspidium marginatum Filix-mas marginalis Filix marginalis var. bipinnatifida Lastrea marginalis var. traillae Nephrodium marginale var. distans Nephrodium marginale var. elegans Nephrodium marginale var. traillae Nephrodium marginale var. umbilicatum Dryopteris marginalis var. elegans Dryopteris marginalis
WorldFloraDB 2024