SOFT SHIELD FERN : Polystichum setiferum
This fern has distinctive fronds which are soft-textured, bipinnate (single-pinnate on small, young plants), with the pinnae opposite on the stalk. The photos below illustrate quite what this means.
Note the sub-fronds alternating along the main frond stems and the soft raggedness of the "leaves".
WIKIPEDIA : https://en.wikipedia.org/wiki/Polystichum_setiferum#:~:text=Polystichum%20setiferum%2C%20the%20soft%20shield%20fern%2C%20is%20an,The%20Latin%20specific%20epithet%20setiferum%20means%20%E2%80%9Cwith%20bristles%E2%80%9D.