Difference between revisions of "Dryopteris arguta"
Amer. Fern J. 11: 3. 1921.
Common names: Marginal wood fern coastal wood fern
Basionym: Aspidium argutum Kaulfuss
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Leaves </b>monomorphic, green through winter, 25–90 × 8–30 cm. <b>Petiole</b> 1/4–1/3 length of leaf, scaly at least at base; scales scattered, light brown. <b>Blade</b> green to yellow-green, ovate-lanceolate, pinnate-pinnatifid to 2-pinnate at base, herbaceous, glandular. <b>Pinnae</b> ± in plane of blade, lance-oblong; basal pinnae deltate, not much reduced, basal pinnules ± same length as adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule ± equal, pinnule margins serrate with spreading, spinelike teeth. <b>Sori</b> midway between midvein and margin of segments. <b>Indusia</b> lacking glands. <b>2n</b> = 82.</span><!-- |
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|genus=Dryopteris | |genus=Dryopteris | ||
|species=Dryopteris arguta | |species=Dryopteris arguta | ||
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Revision as of 13:14, 27 July 2019
Leaves monomorphic, green through winter, 25–90 × 8–30 cm. Petiole 1/4–1/3 length of leaf, scaly at least at base; scales scattered, light brown. Blade green to yellow-green, ovate-lanceolate, pinnate-pinnatifid to 2-pinnate at base, herbaceous, glandular. Pinnae ± in plane of blade, lance-oblong; basal pinnae deltate, not much reduced, basal pinnules ± same length as adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule ± equal, pinnule margins serrate with spreading, spinelike teeth. Sori midway between midvein and margin of segments. Indusia lacking glands. 2n = 82.
Habitat: Shaded slopes and open woods
Elevation: 0–2100 m
Distribution
B.C., Ariz., Calif., Oreg., Wash., Mexico in Baja California.
Discussion
Dryopteris arguta is somewhat variable. It has been suggested that more than one taxon is involved. No hybrids involving D. arguta are known.
Selected References
None.
Lower Taxa
None.