The Flora of Mount Rainier -- a Photographic Journey, by Susan McDougall
Sierra Marsh Fern - Thelypteris nevadensis
Rare and known from just one location in the Park, although the plant is more common southwards into California. Found on the Cowlitz Divide Trail at 3000 feet in a Silver Fir - Western Hemlock forest and photographed on July 1, 2016.
