Polypodium californicum is a small, herbaceous perennial species of fern known by the common name California polypody. It is native to Baja California and California, where it grows along the coastline.
California polypody is a member of the Polypody fern family (Polypodiaceae), a large family of ferns with about 40-50 genera and 500-700 species worldwide. This polypody anchors with a scaly rhizome. It produces oval to triangular leaves up to 70 centimetres (28 in) in length and 20 centimetres (7.9 in) in width. Each leaf is made up of many dull-pointed lance-shaped segments which may be thin or firm or somewhat fleshy, and have lightly serrated edges. The underside of each leaf segment is lined with a double row of flattened or sunken sori, which contain the spores.