Humboldt County, California, US
Huge; the most common/visible fern in the area.
Lady Bird Johnson Grove, Redwood NP
Many ferns growing in dense understory.
Common understory species in dense forest.
Sword fern covered in snow
Once pinnate. Naked sori. Leaflets with pointed tips and usually >3cm
The sword fern (Polystichum munitum) is in the family Polypodiaceae. Pinnate alternative toothed leaflets. Leaflets have thumb-like base with small vein attachment. Sori orange in color with round indusium. Grows somewhat low to the ground.