The fronds are flat and oblong, with lobes fairly equal in size. They are dark green and are 1-pinnate. The sori are circular. Frond length 10 to 40cm.
Found on walls, rocks and trees. Also found in damp, shady places like woodland banks and gorges. Common and widespread throughout, although mostly found in Western Britain and Ireland.
Photographs of Common Polypody (Polypodium vulgare), taken April 2013, Llandudno, Wales. © Pete Hillman 2013. Camera used Nikon Coolpix P500.