Deparia acrostichoides (Sw.) M. Kato
Silvery False Spleenwort
(Athyrium thelypterioides)
Native

White Clay Creek State Park -- Thompson Station Road
September 2011

White Clay Creek State Park -- Thompson Station Road
September 2011
Sterile frond

White Clay Creek State Park -- Thompson Station Road
September 2011
Fertile frond

White Clay Creek State Park -- Thompson Station Road
September 2011
Underside of three fertile pinnae

September 2011
Two pinna segments, eight sori on each.

September 2011
A single sorus, about 1.5mm long. The cluster of sprangia is partly covered by the indusium.

Middle Run Valley Natural Area
May 2012
Sterile frond

Middle Run Valley Natural Area
September 2014
Fertile frond lit from behind, showing shadows of the sori.

Flint Woods
April 2017