Dryopteris celsa
Dryopteris arguta
California wood fern, coastal wood fern, marginal wood fern
short-creeping or erect.
up to 90 × 30 cm, monomorphic, remaining green throughout winter;
petioles 25–33% of leaf length, with scattered light brown scales.
ovate-lanceolate, pinnate-pinnatifid to 2-pinnate at leaf base, with conspicuous glands.
deltate, with basal basiscopic and basal acroscopic pinnules approximately equal in length; pinnule margins serrate and may be bristle-tipped.
round; on ultimate segments midway between midvein and margin;
indusia reniform;
glands present when young and fading with maturity; spores brown.
Dryopteris celsa
Dryopteris arguta
Open woodlands and shaded slopes. 0–1600 m. Casc, CR, Est, Sisk, WV. CA, WA; north to British Columbia, southeast to AZ. Native.
Dryopteris arguta occurs in several variable, unnamed morphological forms. Only the most common of these is found in Oregon, and it is described here. Dryopteris arguta is somewhat similar morphologically to the eastern species D. marginalis, to which it may be closely related. Unlike most North American Dryopteris, it is not known to form any hybrids with other species.
Emily Sessa
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
