Blechnum spicant

A forest-floor fern of the Pacific Northwest. The sori, running down the center of each pinna with an indusium along each edge, are distinctive.

Plant habit in the Hoh Rainforest, Olympic National Park, 1 Aug 2008.

Abaxial surface of a sporophyll, showing sori, 1 Aug 2008.

Adaxial surface of a trophophyll, Hoh Rainforest, 1 Aug 2008.

Abaxial view of a trophophyll in the Hoh Rainforest, 1 Aug 2008.

Different view of the same clump as is seen in the first photograph, Hoh Rainforest, 1 Aug 2008.