1 subspecies and varieties
Show only taxa with photos
– coastal fern, marginal wood fern
Distribution: Cheifly west of the Cascade summits, southern Washington to California and east to Arizona; also in the mountains of eastern Oregon.
Habitat: Mostly in the woods, but occasionally in more open areas.
– spinulose fern, toothed wood fern
Distribution: Circumboreal, extending south in North America to Oregon and northern California from the Cascades to the coast; also in northern Idaho and northwest Wyoming.
Habitat: Moist woods and streambanks.
– crested wood fern fern, shield fern
Distribution: Circumboreal, extending south in North America to northern Idaho, northwest Montana, and Arkansas.
Habitat: Moist woods and thickets.
– northern fern, spreading wood fern
Distribution: Circumboreal; throughout the Pacific Northwest
Habitat: Moist to wet woods and streambanks
– male fern
– Anderson's sword fern, Vancouver holly fern
Distribution: Southern Alaska south to northern Oregon, northern Idaho, and northwest Montana; also in the Olympic Mountains of Washington.
Habitat: Deep woods and thickets in the mountains.
– California sword fern
Distribution: Occurring west of the Cascades crest in Washington; southern British Columbia south to California.
Habitat: Moist forest understory at low elevations, typically in rock crevices.
– imbricate sword-fern, rock sword-fern
Cascades of central Washington south to California, and in the Olympics; sometimes on serpentine
Dry, rocky places, open areas and open woods, at mid-elevations
– imbricate fern, narrow-leaved sword fern
– holly fern, Kruckeberg's sword fern fern
Distribution: Occurring in the Olympics and Cascades mountains in Washington; British Columbia south to California, east to Montana, Idaho, Nevada and Utah.
Habitat: Open slopes, typically among rocks; tolerant of serpentine.
– hybrid holly fern
– Lemmon's holly fern, Shasta fern
Distribution: Occurring on both sides of the Cascades in the northern half of Washington, particularly common in the Wenatchee Mountains; southern British Columbia, northern Washington, disjunct in the Wallowa Mts., and in southwestern Oregon and northern California.
Habitat: Open, rocky slopes near timberline in the mountains, chiefly on serpentine.
– hidden sword fern
– serpentine holly fern
– mountain fern, northern holly fern
Distribution: Alaska to California, east to Quebec and Wyoming
Habitat: Talus slopes and cliff crevices, occasionally in coniferous forests, mid- to high elevations in the mountains
– common sword fern, western fern
Distribution: In forested areas throughout Washington; British Columbia south to California, east to Montana.
Habitat: Moist coniferous woods, in open to deep shade; from sea-level to midmontane.
Spores: Spores year-round on fronds
– hybrid sword fern
– mountain holly fern, rock sword fern
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to Montana, Idaho, Wyoming, Nevada, Utah, and Arizona.
Habitat: Open slopes, typically associated with rock outcroppings and crevices; tolerant of serpentine.