Flora of North America species comparison

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Dryopteris arguta

California wood fern, coastal fern, coastal wood fern, marginal wood fern, wood fern
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.
Indusia

lacking glands.
Sori

midway between midvein and margin of segments.
2n

= 82.

Dryopteris arguta
Habitat Shaded slopes and open woods
Elevation 0–2100 m (0–6900 ft)
Distribution
from FNA
AZ; CA; OR; WA; BC; Mexico in Baja California
[WildflowerSearch map]
[BONAP county map]
Discussion

Dryopteris arguta is somewhat variable. It has been suggested that more than one taxon is involved. No hybrids involving D. arguta are known.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2.
Parent taxa Dryopteridaceae > Dryopteris
Sibling taxa
D. campyloptera, D. carthusiana, D. celsa, D. cinnamomea, D. clintoniana, D. cristata, D. expansa, D. filix-mas, D. fragrans, D. goldieana, D. intermedia, D. ludoviciana, D. marginalis
Synonyms Aspidium argutum
Name authority (Kaulfuss) Maxon: Amer. Fern J. 11: 3. (1921)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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