Cryptogramma acrostichoides
(American parsley fern or rockbrake)
Cryptogramma acrostichoides University of Washington Burke Museum

"In general appearance its light green, densely bunched foliage somewhat resembles parsley (particularly the vegetative fronds) - hence one of its common names, while the generally rocky habitat accounts for the other common name of Rock Brake. It is a herbaceous plant bearing both fertile and vegetative fronds.

The spore bearing fronds are longer than the others and extend above them in the dense clump of foliage."
MOUNT RAINIER NATIONAL PARK NATURE NOTES March 1937

I originally thought this was Cryptogramma cascadensis
Cascade rockbrake, Cascade parsley fern

Lake 22, Trail 702
Snohomish County, Washington

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